or SUFFIX
-or; -er; indicates the doer; one who performs the action of the verb (act.or);
protractor N 3 1 NOM S M
protractor N 3 1 VOC S M
protraho, protrahere, protraxi, protractus V (3rd) [XXXDX] lesser
drag forward, produce; bring to light, reveal; prolong, protract;
pro PREFIX
- forward; before; in front of; forth [pro-cedo => go forth, proceed, continue]
tract.or V 1 1 PRES PASSIVE IND 1 S
tracto, tractare, tractavi, tractatus V (1st) [XXXBX]
draw, haul, pull, drag about; handle, manage, treat, discuss;

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.