Where does “クレア” come from?

クレア (Japanese) comes from English Clare, from English Clara, from Latin clara, from Latin clarus, from Proto-Italic klāzos, from Proto-Indo-European kelh₁- — to call, cry, summon.

Ancestry of “クレア”, step by step

Step	Language	Word	Meaning
1	English	Clare	A nun of the order of Saint Clare
2	English	Clara	named Clara-Villerach since 2017
3	Latin	clara	inflection of clārus: ## nominative/vocative...
4	Latin	clarus	clear, bright; renowned, famous; upstanding,...
5	Proto-Italic	klāzos	—
6	Proto-Indo-European	kelh₁-	to call, cry, summon

Every word from Proto-Indo-European kelh₁- →Every word from Proto-Italic klāzos →Every word from Latin clarus →