cass.is N 2 2 LOC P N
cass.is N 2 2 DAT P N
cass.is N 2 2 ABL P N
cassum, cassi N (2nd) N [XXXES] uncommon
empty/vain/futile things (pl.);
cass.is ADJ 1 1 DAT P X POS
cass.is ADJ 1 1 ABL P X POS
cassus, cassa, cassum ADJ [XXXBO]
hollow/empty/devoid of, lacking; useless/fruitless/vain; [in cassum => in vain]
cassis N 3 3 NOM S M
cassis N 3 3 VOC S M
cass.is N 3 3 GEN S M
cass.is N 3 3 ACC P M Early
cassis, cassis N (3rd) M [XWXCO]
hunting net (often pl.); spider's web; snare, trap;
cassis N 3 1 NOM S F
cassis N 3 1 VOC S F
cassis, cassidis N (3rd) F [XWXCO]
helmet (metal); wearer of a helmet; war, active service;
*

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.