1) Betrothal 2) Engagement 3) Exclusively Saxon word 4) Exclusively Anglo word 5) Faithfulness, old style 6) Fidelity 7) Fidelity, old style 8) It may be pledged 9) Loyalty 10) Loyalty, of old 11) Loyalty, old style 12) Loyalty, old-style 13) Marital pledge 14) Marriage promise 15) Marriage vows 16) Pledge of fidelity Found on https://www.crosswordclues.com/clue/troth