to make full or complete again, as by supplying what is lacking, used up, etc.: to replenish one's stock of food.
2.
to supply (a fire, stove, etc.) with fresh fuel.
3.
to fill again or anew.
Origin: 1300–50;Middle Englishreplenisshen < Middle Frenchrepleniss-, long stem of replenir to fill, Old French, equivalent to re-re- + plenir to fill (derivative of plein < Latinplēnusfull1)
mid-14c., from O.Fr. repleniss-, extended prp. stem of replenir "to fill up," from re-, intensive prefix, + -plenir, from L. plenus "full" (see plenary).