Where does “adivinha” come from?

adivinha (Portuguese) comes from Portuguese adivinhar, from Old Portuguese adevinnar, from Latin Ad, from Latin illic, from Latin ille, from Latin olle, from Proto-Italic *olnos — that.

adivinha (Portuguese): riddle; third-person singular present indicative...

Definitions

riddle; third-person singular present indicative...

Ancestry of “adivinha”, step by step

Step	Language	Word	Meaning
1	Portuguese	adivinhar	to guess; to foretell
2	Old Portuguese	adevinnar	—
3	Latin	Ad	toward, to
4	Latin	illic	he, she, it, yonder, that, overthere; in that...
5	Latin	ille	that; those; "; demonstrative pronoun "; that...
6	Latin	olle	Archaic form of ille
7	Proto-Italic	*olnos	that

Every word from Proto-Italic *olnos →Every word from Latin olle →Every word from Latin ille →