ul SUFFIX
little, small, -let (Diminutive) target is of gender of root => decl;
venul.us N 2 1 NOM S M
vena, venae N (1st) F [XXXBX]
blood-vessel, vein; artery; pulse; fissure, pore, cavity; vein of ore/talent;
venum, veni N (2nd) N [XXXCO]
sale, purchase; (only sg. ACC/DAT w/dare); [venum dare => put up for sale];
venus, venus N (4th) M [XXXCO]
sale, purchase; (only sg. ACC/DAT w/dare); [venui dare => put up for sale];
ul SUFFIX
-ulus; of a, pertaining to a, in a condition of, in a state of;
venul.us ADJ 1 1 NOM S M POS
vena, venae N (1st) F [XXXBX]
blood-vessel, vein; artery; pulse; fissure, pore, cavity; vein of ore/talent;
venum, veni N (2nd) N [XXXCO]
sale, purchase; (only sg. ACC/DAT w/dare); [venum dare => put up for sale];
venus, venus N (4th) M [XXXCO]
sale, purchase; (only sg. ACC/DAT w/dare); [venui dare => put up for sale];

Credits:
This, our local install of the popular standby Whitaker's Words, is possible thanks to the resurrection of the venerable project at William Whitaker's Words, where you will also find extensive documentation. The corresponding GitHub repository is where you can submit issues about missing forms and analyses.
This web interface by Walter M. Shandruk.