Where does “ծո” come from?

ծո (Armenian) comes from Middle Armenian ծօ, from Old Armenian ծօլա, from Old Georgian წული, from Proto-Kartvelian *c̣₁ul- — baby, child.

ծո (Armenian): used to address or call a familiar person, traditionally a male, often implying on the part of the speaker some degree of authority or annoyance

Definitions

used to address or call a familiar person, traditionally a male, often implying on the part of the speaker some degree of authority or annoyance

Ancestry of “ծո”, step by step

Step	Language	Word	Meaning
1	Middle Armenian	ծօ	—
2	Old Armenian	ծօլա	—
3	Old Georgian	წული	child, son, daughter
4	Proto-Kartvelian	*c̣₁ul-	baby, child

Every word from Proto-Kartvelian *c̣₁ul- →Every word from Old Georgian წული →Every word from Old Armenian ծօլա →