ori SUFFIX
-orous, -ory; having to do with, pretaining to; tending to;
dirivatori.um ADJ 1 1 NOM S N POS
dirivatori.um ADJ 1 1 VOC S N POS
dirivatori.um ADJ 1 1 ACC S M POS
dirivatori.um ADJ 1 1 ACC S N POS
dirivo, dirivare, dirivavi, dirivatus V (1st) TRANS [XXXCO]
draw/lead off (river/fluid), divert/turn aside; derive/draw on; form derivative
or SUFFIX
-or; -er; indicates the doer; one who performs the action of the verb (act.or);
dirivator.ium N 3 1 GEN P M
dirivo, dirivare, dirivavi, dirivatus V (1st) TRANS [XXXCO]
draw/lead off (river/fluid), divert/turn aside; derive/draw on; form derivative

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.