From tə́ʼu- [<tə́- (?) + -ʼu- (“north”?)] + -tho. Cognate with Picuris tə́ʼu-pa.
tə́ʼutho
This word is said in response to the question hípiw yę́hųpiw “Which way is it?”.
-ʼu-
tə́-