Where does “Համեստ” come from?

Համեստ (Armenian) comes from Old Armenian համեստ, from Old Armenian -ստ, from Proto-Indo-European -sti-.

Ancestry of “Համեստ”, step by step

Step	Language	Word	Meaning
1	Old Armenian	համեստ	modest, decent; reserved, moderate, temperate
2	Old Armenian	-ստ	Forming few action nouns. These action nouns may...
3	Proto-Indo-European	-sti-	—

Համեստ — Etymology, Origin & Word History | Etymology Explorer