Synonyms of swear

1 Syllable
damns, vow, trust, vouch, plight, damn
2 Syllables
plighting, avow, insist, aver, assert, reassert, warrant, avouch, vowed, affirm, avers, affirms, attest, state, maintain
3 Syllables
depose, deponed, certifying, testify, warranting, testified, promise, attesting, affirming, averring, deponing, blaspheme, averred, attested, guaranteeing, depone, insisted, blasphemed, declare, asserting, certify, declaring, insisting, reasserted, certified, affiance, covenant, testifying, asserted, profaned, blaspheming, avouched, tokened, affirmed, reasserting
4 Syllables
notarizing, allegate, asservate, notarize, notarized