betrothed
verb
°past tense of betroth.
"1901: American Standard Version of the Bible, Luke 1:27, read at - A virgin betrothed to a man whose name was Joseph."
noun
"2005: Mori, on In Passing messageboard read at on 16 May 2006, Pffft - We both hated using that word [fiancé], and were constantly trying to use alternatives such as "betrothed" and "intended"."