commonitor.ium N 3 1 GEN P M
commonitor, commonitoris N (3rd) M [DXXFS] Late veryrare
one who earnestly reminds;
commonitori.um N 2 2 NOM S N
commonitori.um N 2 2 VOC S N
commonitori.um N 2 2 ACC S N
commonitori.um N 2 2 GEN P N uncommon
commonitorium, commonitorii N (2nd) N [DXXDS] Late lesser
aide-memoire, writing for reminding; letter of instructions; means of reminding
commonitori.um ADJ 1 1 NOM S N POS
commonitori.um ADJ 1 1 VOC S N POS
commonitori.um ADJ 1 1 ACC S M POS
commonitori.um ADJ 1 1 ACC S N POS
commonitorius, commonitoria, commonitorium ADJ [DXXFS] Late veryrare
suitable for reminding;

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.