Borrowed into Middle English from Old French fructefier.

• IPA: /ˈfɹʌktɪfaɪ/

fructify (fructifies, present participle fructifying; simple past and past participle fructified)

1. (intransitive) To bear fruit; to generate useful products or ideas.
   • 1634, T[homas] H[erbert], “Mohelia, Its Description”, in A Relation of Some Yeares Trauaile, Begunne Anno 1626. into Afrique and the Greater Asia, […], London: […] William Stansby, and Jacob Bloome, →OCLC ↗, page 24 ↗:

     Atop the [Palmito] tree is a pith, in taſte better then Cabbage; and eating it takes avvay the future benefit of grovvth or fructifying, theſe and the Date-tree thriue not, except the male and female be vnited, and haue copulation: the ſhe is only fruitfull.

     A noun use.

2. (transitive) To make productive or fruitful.

• French: fructifier
• Italian: fruttificare
• Spanish: fructificar