Trilith in Stonehenge

A trilithon or trilith[1] is a structure consisting of two large vertical stones (posts) supporting a third stone set horizontally across the top (lintel). It is commonly used in the context of megalithic monuments. The most famous trilithons are those of Stonehenge in England.

The word trilithon is derived from the Greek "having three stones" (τρι- tri- "three" + λίθος líthos "stone") and was first used in its modern archaelogical sense by William Stukeley.

Other famous trilithons include those found in the Megalithic temples of Malta (which like Stonehenge are a UNESCO World Heritage Site), the Osireion in Egypt, and the Haʻamonga ʻa Maui in Tonga, Polynesia. The term is also used to describes the groups of three stones in the Hunebed tombs of the Netherlands.

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  1. ^ Gowland 1902, pp. 22

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