Where does “guidar” come from?

guidar (Old Occitan) comes from Frankish wītan, from Proto-Germanic *witaną, from Proto-Indo-European wóyde, from Proto-Indo-European weyd- — to see.

Ancestry of “guidar”, step by step

Step	Language	Word	Meaning
1	Frankish	wītan	to show the way, lead; to accuse, to blame
2	Proto-Germanic	*witaną	—
3	Proto-Indo-European	wóyde	to have seen, to know
4	Proto-Indo-European	weyd-	to see

guidar — Etymology, Origin & Word History | Etymology Explorer