pro PREFIX
before -, in front of -;
or SUFFIX
-or; -er; indicates the doer; one who performs the action of the verb (act.or);
tractator N 3 1 NOM S M
tractator N 3 1 VOC S M
tracto, tractare, tractavi, tractatus V (1st) [XXXBX]
draw, haul, pull, drag about; handle, manage, treat, discuss;
pro PREFIX
- forward; before; in front of; forth [pro-cedo => go forth, proceed, continue]
tract.ator V 1 1 FUT PASSIVE IMP 2 S
tract.ator V 1 1 FUT PASSIVE IMP 3 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.