fecundate
Concise Oxford English Dictionary © 2008 Oxford University Press:
fecundate /ˈfɛk(ə)ndeɪt, ˈfiːk-/
▶verb archaic fertilize.
■ literary make fruitful.
– derivatives
fecundation noun.
fecundation noun.
– origin C17: from L. fecundat-, fecundare ‘make fruitful’.
'fecundate' also found in these Oxford entries:

