Where does “ալուցք” come from?

ալուցք (Old Armenian) comes from Old Armenian ալուց, from Old Armenian -ուց, from Old Armenian -ու-, from Proto-Indo-European -kyā-, from Proto-Indo-European -k-.

Ancestry of “ալուցք”, step by step

Step	Language	Word	Meaning
1	Old Armenian	ալուց	deep place, depth
2	Old Armenian	-ուց	forming nouns; the plural genitive case ending of...
3	Old Armenian	-ու-	—
4	Proto-Indo-European	-kyā-	—
5	Proto-Indo-European	-k-	—

Every word from Proto-Indo-European -k- →Every word from Old Armenian -ուց →Every word from Old Armenian ալուց →