Where does “հագնի” come from?

հագնի (Armenian) comes from Old Armenian հագնի, from Ancient Greek ἄγνος, from Ancient Greek ἁγνός, from Ancient Greek ἁγνεία, from Ancient Greek ᾰ̔γνός.

հագնի (Armenian): chaste tree, "Vitex agnus-castus"

Definitions

chaste tree, "Vitex agnus-castus"

Ancestry of “հագնի”, step by step

Step	Language	Word	Meaning
1	Old Armenian	հագնի	chaste tree, "Vitex agnus-castus"
2	Ancient Greek	ἄγνος	chaste tree; Atlantic stargazer; type of bird
3	Ancient Greek	ἁγνός	pure, chaste; holy, sacred; purifying
4	Ancient Greek	ἁγνεία	purity, chastity; purification, cleansing
5	Ancient Greek	ᾰ̔γνός	—

Every word from Ancient Greek ᾰ̔γνός →Every word from Ancient Greek ἁγνεία →Every word from Ancient Greek ἁγνός →