Word Origin & History
O.E. calu "bare, bald," prob. from W.Gmc. *kalwaz (cf. M.Du. calu, Du. kaal, O.H.G. kalo, Ger. Kahl), perhaps from L. or Celt. From young birds with no feathers, meaning extended to any young inexperienced thing or creature (1570s). Apparently not from L. calvus "bald."