Where does “ola” come from?

ola (Chichewa) comes from Portuguese hora, from Old Portuguese ora, from Latin hōra, from Ancient Greek ὥρα, from Proto-Hellenic *worā, from Proto-Indo-European wēr-, from Proto-Indo-European wer- — to burn; to cover, heed, notice; squirrel.

ola (Chichewa): hour

Definitions

hour

Ancestry of “ola”, step by step

Step	Language	Word	Meaning
1	Portuguese	hora	hour; time
2	Old Portuguese	ora	—
3	Latin	hōra	hour
4	Ancient Greek	ὥρα	any defined period of time; season; climate
5	Proto-Hellenic	*worā	—
6	Proto-Indo-European	wēr-	true
7	Proto-Indo-European	wer-	to burn; to cover, heed, notice; squirrel

Every word from Proto-Indo-European wer- →Every word from Proto-Indo-European wēr- →Every word from Proto-Hellenic *worā →