The Collaborative International Dictionary
Fructuaries
Fructuary \Fruc"tu*a*ry\ (fr[u^]k"t[-u]*[asl]*r[y^]), n.; pl. Fructuaries (-r[i^]z). [L. fructuarius.] One who enjoys the profits, income, or increase of anything.
Kings are not proprietors nor fructuaries.
--Prynne.
Wiktionary
fructuaries
n. (plural of fructuary English)