i SUFFIX
-er, makes adjective comparative;
proclivi.orem ADJ 0 0 ACC S C COMP
proclivus, procliva, proclivum ADJ [XXXEC] uncommon
inclined forward, sloping downwards; inclined, ready;
proclivis, proclivis, proclive ADJ [XXXDX] lesser
sloping down; downward; prone (to); easy;

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.