rebound (n.) Look up rebound at Dictionary.com
1520s, in reference to a ball, from rebound (v.). Sense in basketball from 1920 (from 1917 in ice hockey). Meaning "period of reaction or renewed activity after disturbance" is from 1570s.
rebound (v.) Look up rebound at Dictionary.com
late 14c., "to spring, leap," also "return to afflict" (early 15c.), from Old French rebondir "leap back, resound; repulse, push back," from re- "back" (see re-) + bondir "leap, bound" (see bound (v.)). Sense of "to spring back from force of impact" is recorded from late 14c. Sports use probably first in tennis; basketball sense is attested from 1914. Related: Rebounded; rebounding.