"make answer, give a reply in words; make a liturgical response," c. 1300, respounden, from Old French respondere "respond, correspond" and directly from Latin respondere "respond, answer to, promise in return," from re- "back" (see re-) + spondere "to pledge" (see sponsor (n.)). Modern spelling and pronunciation is from c. 1600. Related: Responded; responding.
The cancer responded to the aggressive therapy
respiratory
respire
respite
resplendence
resplendent
respond
respondent
responder
response
responsibility
responsible
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