Where does “nittus” come from?

nittus (Vulgar Latin) comes from Latin nitidus, from Latin nitere, from Latin niteo, from Proto-Indo-European ney-, from Cebuano -hi.

Ancestry of “nittus”, step by step

Step	Language	Word	Meaning
1	Latin	nitidus	shining, polished, glittering; handsome,...
2	Latin	nitere	second-person singular future active indicative...
3	Latin	niteo	I am radiant, shine, look bright, glitter,...
4	Proto-Indo-European	ney-	to shine; to be aroused, shine; to be excited
5	Cebuano	-hi	—