plightage--prophetes.ai

plightage rare^—1.
  (ˈplaɪtɪdʒ)
  [f. plight v.¹ + -age.]
  The fact or state of being plighted or betrothed.

1908 Hardy Dynasts III. v. iv. 442 These vile tricks, to pluck you from Your nuptial plightage..Make me belch oaths!

Oxford English Dictionary