Abrogate rhymes with:
congregate, corrugate, desegregate, interrogate, irrigate, segregate, castigate, congregate, corrugate, delegate, desegregate, fumigate, instigate, interrogate, investigate, irrigate, koreagate, mitigate, navigate, obligate, propagate, relegate, segregate, subjugate
Abrogate sounds like:
abreast, abrogated, affricate, aforesaid, appraised, appreciate, appreciated, apprised, approached, apricot, averaged