From Wiktionary, the free dictionary
Contraction of yi- + oh-
wooh-
- Marks a second person duoplural subject of a progressive verb
Navajo progressive mode subject markers
Contraction of w- (peg element) + ó- (optative mood) + oh-
wooh-
- Marks a second person duoplural subject of an optative mode verb
Navajo optative mode subject markers