Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
per-fructĭo or perfruĭtĭo, ōnis, f. [perfruor], complete enjoyment or fruition (eccl. Lat.): perfructio summi et veri boni, Aug. Quant. Anim. 33: sine perfruitione, id. Trin. 6, 10.