Source : Webster's Revised Unabridged Dictionary (1913)

Fecund \Fec"und\, a. [L. fecundus, from the root of fetus: cf.
   F. f['e]cond. see {Fetus}.]
   Fruitful in children; prolific. --Graunt.

Source : WordNet®

fecund
     adj 1: capable of producing offspring or vegetation
     2: intellectually productive; "a prolific writer"; "a fecund
        imagination" [syn: {fertile}, {prolific}]