cramp (v.1)youdaoicibaDictYouDict
"to contract" (of muscles), early 15c., from cramp (n.1). Related: Cramped; cramping.
cramp (v.2)youdaoicibaDictYouDict
"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.