rix SUFFIX
-ess, -or; -er; indicates the doer; one who performs action of verb (act.ess);
invitatrix N 3 1 NOM S F
invitatrix N 3 1 VOC S F
invito, invitare, invitavi, invitatus V (1st) [XXXBX]
invite, summon; challenge, incite; encourage; attract, allure, entice;