Derby rhymes with:
burby, curby, ellerbee, erby, furby, herbie, irby, kearby, kerby, kirby, yearby, yerby
Derby sounds like:
darby, darpa, dauterive, deharbe, derive, diatribe, dorf, dorff, drab, drape, drapeau, dravo, drip, drive, drive-by, driveway, droop, droopy, drop, drop-off, dropoff, drove, drub, drupe, durfee, durfey, dwarf