rix SUFFIX
-ess, -or; -er; indicates the doer; one who performs action of verb (act.ess);
excubitrix N 3 1 NOM S F
excubitrix N 3 1 VOC S F
excubo, excubare, excubui, excubitus V (1st) [XXXDX] lesser
sleep/lie in the open/out of doors; keep watch; be attentive;