mid-14c., from Old French repleniss-, extended present participle stem of replenir "to fill up," from re-, here probably an intensive prefix, + -plenir, from Latin plenus "full" (from PIE root *pele- (1) "to fill"). Related: Replanished; replenishing.
replace
replaceable
replacement
replant
replay
replenish
replete
repletion
replevin
replica
replicable