overstock I. \| ̷ ̷ ̷ ̷| ̷ ̷\verb Etymology:over (I) + stock transitive verb 1.: to stock beyond requirements or facilities < overstock a pasture > < overstock merchandise > 2.: to leave (a cow) unmilked for too long a time intransitive verb : to stock in excess of needs or facilities II. \ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\noun : an excess of stock; specifically: remainder 3a < publishers' overstock bought and sold — Publishers' Weekly >