1560s, from Middle French capable or directly from Late Latin capabilis "receptive; able to grasp or hold," used by theologians, from Latin capax "able to hold much, broad, wide, roomy;" also "receptive, fit for;" adjectival form of capere "to grasp, lay hold, take, catch; undertake; take in, hold; be large enough for; comprehend," from PIE *kap- "to grasp" (cognates: Sanskrit kapati "two handfuls;" Greek kaptein "to swallow, gulp down;" Lettish kampiu "seize;" Old Irish cacht "servant-girl," literally "captive;" Welsh caeth "captive, slave;" Gothic haban "have, hold;" Old English hæft "handle," habban "to have, hold," Modern English have). Related: Capably.