Two words
May be 2 words combined (inane+factus) If not obvious, probably incorrect
fact.us VPAR 3 1 NOM S M PERF PASSIVE PPL
facio, facere, feci, factus V (3rd) TRANS [XXXAO]
make/build/construct/create/cause/do; have built/made; fashion; work (metal);
act/take action/be active; (bowels); act/work (things), function, be effective;
produce; produce by growth; bring forth (young); create, bring into existence;
compose/write; classify; provide; do/perform; commit crime; suppose/imagine;
fact.us VPAR 3 3 NOM S M PERF PASSIVE PPL
fio, fieri, factus sum V SEMIDEP [XXXAO]
happen, come about; result (from); take place, be held, occur, arise (event);
be made/created/instituted/elected/appointed/given; be prepared/done; develop;
be made/become; (facio PASS); [fiat => so be it, very well; it is being done];
inan.e ADJ 3 2 NOM S N POS
inan.e ADJ 3 2 VOC S N POS
inan.e ADJ 3 2 ABL S X POS
inan.e ADJ 3 2 ACC S N POS
inanis, inanis, inane ADJ [XXXAX]
void, empty, hollow; vain; inane, foolish;
inane N 3 4 NOM S N
inane N 3 4 VOC S N
inan.e N 3 4 LOC S N
inan.e N 3 4 DAT S N Early
inane N 3 4 ACC S N
inane, inanis N (3rd) N [XXXDX] lesser
empty space/expanse/part of structure, hollow, void; space devoid of matter;


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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.