英语词源字典 - 在线词源网站

cramp (v.1)[cramp 词源字典]: "to contract" (of muscles), early 15c., from cramp (n.1). Related: Cramped; cramping. [cramp etymology, cramp origin, 英语词源]
cramp (v.2): "to bend or twist," early 14c., from cramp (n.2) and Old French crampir. Later "compress forcibly" (1550s), and, figuratively, "to restrict" (1620s). Related: Cramped; cramping.