rix SUFFIX
-ess, -or; -er; indicates the doer; one who performs action of verb (act.ess);
cognitrix N 3 1 NOM S F
cognitrix N 3 1 VOC S F
cognosco, cognoscere, cognovi, cognitus V (3rd) TRANS [XXXAO]
become acquainted with/aware of; recognize; learn, find to be; inquire/examine;