We have no meanings for "break troth" in our records yet.
1 To see a broken harp, betokens illness, or broken troth between lovers.
2 How many times have they broken troth and faith?
3 I have always kept troth with my own country; I have never broken troth with England.
4 To this I hastily replied that of a surety he could not care to know, inasmuch as he had broken troth with her.
5 "Thou hast been a brave fellow, and better broken head than broken troth , " said his uncle.
6 Whether or not I could have kept my faith with you by breaking troth with her, it is you who have set me free.
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