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Trinity Knot (Triquetra) – What Is It and What Does It Mean?

One of the most beloved Irish symbols, the trinity knot has many interpretations depending on the cultural lens it’s viewed through. Here’s a breakdown of its history and meanings. 

Trinity Knot History

The trinity knot features three inter-connected ovals or arcs, with some variations featuring a circle in the center. While it may look complex, it’s considered to be the simplest knot.

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The symbol is also called a triquetra, which is Latin for three-cornered. In archaeological contexts, the word triquetra is used to describe any image containing three arcs. It’s very similar in its depiction to the Gordian knot.

Although the trinity knot is commonly associated with Celtic culture, the symbol has been found across the globe, with significance in many cultures.

  • The trinity knot has been found in Indian heritage sites and can be traced back to around 3000 BC
  • Coins from early Lycia (modern day Turkey) feature the triquetra symbol
  • The triquetra appears in early Germanic coins
  • Persian and Anatolian artwork and decorative items often featured triquetras
  • The symbol was known in Japan where it is called musubi mitsugashiwa
  • The trinity knot became a frequent symbol in Celtic artwork in the 7th Century and flourished during the Insular Art Period. This movement referred to distinct artwork developed in Britain and Ireland, known for its use of interlaced strands.  

The exact origin of the trinity knot is disputed. Different cultures have tried to lay claim to the trinity knot as their creation. For example, the Celts claimed that the trinity knot was created by them while Christians claim that monks used the trinity knot to convert Celts to Christianity. Either way, the fact that the trinity knot was used in India centuries before the celts and Christianity undermines these claims.

Although the symbol was used in various parts of the globe, today the trinity knot is noted for its connection to Celtic culture and known as one of the most popular of the Celtic knot designs. With the Norman invasion, the trinity knot’s popularity declined in Celtic knotwork. However, the trinity knot, along with other Celtic knots, resurged during the Celtic Revival period in the mid-19th century. Since then, it has been used regularly in artwork, fashion and architecture, among other things.

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Trinity Knot Meaning and Symbolism

Triquetra gold necklace
Solid gold Triquetra necklace by Evangelos Jewels. See it here.

The trinity knot is a meaningful symbol, with different cultures finding different interpretations for the design. It’s a versatile symbol with religious and secular representations.

Trinity Knot and Christianity

Trinity knot symbol in gold color

For Christians, the trinity knot is highly significant, as it symbolizes the holy trinity – the father, son and the holy spirit. Christian depictions of this symbol often feature a circle at the center of the interlocking arcs to symbolize the oneness of these three concepts. The symbol is common in Christian texts, architecture and artwork.

Trinity Knot and Celtic Culture

In ancient Celtic culture and religion, three is a sacred number as it’s believed that significant phenomena occur in threes. As such, the trinity knot represented any important thing that came in threes, some of which include:

  • The three-layered nature of the human soul
  • The three domains (earth, sea and sky)
  • The three elements (fire, earth and water)
  • The three stages of a woman’s life in terms of physical reproduction (before, during and after the female body’s ability to have a child)
  • The three-fold form of the Goddess – the Maiden, the Mother and the Crone. These three forms represent innocence, creation and wisdom, respectively.

Trinity Knot and Ireland

Today the trinity knot is a symbol of Ireland’s ancient culture. As mentioned above, it’s one of the popular Celtic knots and is immediately recognizable in Irish artwork and architecture.

One of the most unique ways that the trinity knot is displayed in Ireland is in Sligo, where Japanese spruce trees were planted in the shape of a trinity knot among Norwegian spruce trees.

Some Other Meanings of the Trinity Knot

The trinity knot can represent more than just the above meanings. Here are some other, more universal interpretations:

  • The knot has no beginning and no end. As such, it’s the perfect representation of eternity and eternal love.
  • It can represent longevity and a healthy life, due to its continuous shape.
  • It can represent the stages of a relationship – past, present and future. Because each arc is equal in size with no single arc standing out prominently, each stage is considered equally important.

Trinity Knot in Jewelry and Fashion

Today the trinity knot is a common design in jewelry and fashion, typically featured in pendants, earrings and as charms. The symbol is perfectly symmetrical, and the design is unisex, making it ideal for fashion choices for any gender. Below is a list of the editor’s top picks featuring the trinity knot.

Editor's Top Picks
Solvar Celtic Weave & Trinity Knot Necklace Silver Irish Made
See This Here
BlueRica Celtic Trinity Knot (Triquetra) on Adjustable Black Cord Necklace (Old Silver...
See This Here
Distance Celtic Jewelry Irish Gifts for Women, 925 Sterling Silver Trinity Knot...
See This Here
Last update was on: May 14, 2024 11:23 am

Because of its associations with love, eternity and longevity, it is also a popular choice to give as gifts to commemorate anniversaries, engagements and weddings.

Another interesting use for the trinity knot is as a type of tie knot. This is an elaborate and fancy tie knot, which can be somewhat complicated for tie novices, but here’s a video simplifying the process.

In Brief

The trinity knot has a rich and varied history, with depictions in several ancient cultures. Today it remains a popular symbol, with strong ties to Irish and Celtic culture.

Trinity knot meaning infographic
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Dani Rhys
Dani Rhys

Dani Rhys has worked as a writer and editor for over 15 years. She holds a Masters degree in Linguistics and Education, and has also studied Political Science, Ancient History and Literature. She has a wide range of interests ranging from ancient cultures and mythology to Harry Potter and gardening. She works as the chief editor of Symbol Sage but also takes the time to write on topics that interest her.