\Troth\, n. [A variant of truth. See {Truth}.]
1. Belief; faith; fidelity.
         Bid her alight And hertroth plight.   --Shak.
2. Truth; verity; veracity; as, by my troth. --Shak.
         In troth, thou art able to instruct gray hairs.
                                               --Addison.
3. Betrothal.