# iliac

> English word · Adjective · IPA /ˈɪliæk/ · frequency rank #62,212

## Definitions
1. Relating to the ilium.

## Etymology
Etymology tree
Proto-Indo-European *welH-der.
Ancient Greek εἴλω (eílō)
Ancient Greek εἰλέω (eiléō)
Ancient Greek εἰλεός (eileós)der.?
Latin īle
Proto-Indo-European *-kos
Ancient Greek -κός (-kós)
Ancient Greek -ακός (-akós)der.
Latin -acus
Latin īliacuslbor.
French iliaquebor.
English iliac
From French iliaque, from Late Latin īliacus, Latin īlium.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/iliac