Words at the altar (3)

I think it could be either:

Which length description are you looking for?:

1,4,3

ido

(Other definitions for ido that I've seen before include "See 1" , "Naturally, nobody speaks this" , "Wedding promise" , "Say yes in marriage" , "Artificial language" .)

I've seen this clue in The Wall Street Journal, The New York Times and The Washington Post.

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