Where does “grʒ-el-” come from?

grʒ-el- (Proto-Georgian-Zan) comes from Proto-Kartvelian gRʒ- — to be long.

Ancestry of “grʒ-el-”, step by step

StepLanguageWordMeaning
1Proto-KartveliangRʒ-to be long
Every word from Proto-Kartvelian gRʒ-