chronic.orum N 2 2 GEN P N
chronicum, chronici N (2nd) N [XXXEO] uncommon
chronic.orum N 2 8 GEN P N
chronicon, chronici N N [EXXEE] Later uncommon
book of annuals, chronicle;
chronic.orum ADJ 1 1 GEN P M POS
chronic.orum ADJ 1 1 GEN P N POS
chronicus, chronica, chronicum ADJ [XXXFO] veryrare
written as annual/chronicle; pertaining to time; chronic/lingering (L+S);

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.