Impend rhymes with:
append, depend, expend, misspend, penned, spend, suspend, amend, append, apprehend, arend, ascend, attend, backend, befriend, bend, blend, commend, comprehend, condescend, contend, defend, depend, descend, distend, echemende, end, ende, expend, extend, fend, friend, intend, landsend, lend, mend, mende, misspend, offend, overextend, penned, portend, pretend, recommend, relend, rende, reoffend, send, spend, suspend, tend, transcend, trend, unbend, wend, wende, yearend
Impend sounds like:
impound, impounded, impunity, inabinet, inbound, infant, infante, infinite, infiniti, infinity, invent, invented