Where does “Chrissy” come from?

Chrissy derives from Middle English -y, from Middle French -ie, from Latin -ia, from Latin -ivus, from Latin -ia, from Proto-Indo-European -kos.

Ancestry of “Chrissy”, step by step

Step	Language	Word	Meaning
1	English	Chris	—
2	English	Christine	—
3	French	Christine	—
4	German	Christkind	Christ Child
5	German	Christ	a Christian; Christ
6	Middle High German	kristen	—
7	Old High German	kristāni	—
8	Latin	Christiānus	—
9	Latin	Chrīstus	—
10	Ancient Greek	Χριστός	anointed; messiah; annointed, the annointed one,...
11	Ancient Greek	χρίω	to smear with , rub on something; to anoint with...
12	Proto-Indo-European	gʰrēy-	to smear; to paint, streak, smear
13	Proto-Indo-European	gʰer-	to rub; to stroke; to grind

Chrissy — Etymology, Origin & Word History | Etymology Explorer