Two words
May be 2 words combined (cum+erus) If not obvious, probably incorrect
cum ADV POS
cum ADV [XXXAO]
when, at the time/on each occasion/in the situation that; after; since/although
as soon; while, as (well as); whereas, in that, seeing that; on/during which;
cum PREP ABL
cum PREP ABL [XXXAO]
with, together/jointly/along/simultaneous with, amid; supporting; attached;
under command/at the head of; having/containing/including; using/by means of;
er.us N 2 1 NOM S M
erus, eri N (2nd) M [XXXDX] lesser
master, owner;
*

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.