gill (1) Look up gill at Dictionary.com
"organ of breathing in fishes," c.1300, from O.N. giolnar "gills;" O.Dan. -gæln (in fiske-gæln "fish gill").
gill (2) Look up gill at Dictionary.com
"liquid measure" (commonly a half-pint), 1275, from O.Fr. gille "a wine measure," from M.L. gillo "earthenware jar," of uncertain origin.
Gill Look up Gill at Dictionary.com
fem. proper name, see Jill.