betrothment

From betroth +‎ -ment.

betrothment (countable and uncountable, plural betrothments)

1. The act of betrothing, or the state of being betrothed.

• betrothal

• “betrothment”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.