κῆλον

Etymology
It has been compared with 🇨🇬, and further 🇨🇬, 🇨🇬. However, all these words go back to a root with a short vowel, as opposed to this word, with a long one. Connection with is rejected by Frisk and DELG.

Noun

 * 1)  shafts of an arrow, arrows, projectiles