oper.i V 4 1 PRES ACTIVE IMP 2 S
operio, operire, operui, opertus V (4th) TRANS [XXXAO]
cover (over); bury; overspread; shut/close; conceal; clothe, cover/hide the hea
oper.i N 3 2 LOC S N Early
oper.i N 3 2 DAT S N
opus, operis N (3rd) N [XXXAX]
need; work; fortifications (pl.), works; [opus est => is useful, beneficial];

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.