capable Look up capable at Dictionary.com
1561, from L.L. capabilis "receptive," used by theologians, from L. capax "able to hold much," adj. form of capere "to take, grasp, lay hold, catch, undertake, be large enough for, comprehend," from PIE *kap- "to grasp" (cf. Skt. kapati "two handfuls," Gk. kaptein "to swallow, gulp down," Lett. kampiu "seize," O.Ir. cacht "servant-girl," lit. "captive," Welsh caeth "captive, slave," Goth. haban "have, hold," O.E. hæft "handle," habban "to have, hold;" see have).