Altar vow (3)

I think it could be either:

Which length description are you looking for?:

1,2 3*

(Other definitions for ido that I've seen before include "Obscure language" , "See 1" , "Wedding response" , "Say yes in marriage" , "a language? That's unnatural" .)

I've seen this clue in the King Feature Syndicate and The Star Tribune.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.