quinquo
Could not find quinquenn in Logeion dictionaries.
quinquenn Verb: present active subjunctive 2nd singular of quinquo
‡ * quinquo, āre, v. a., to expiate, purify by religious rites: quinquatrus a quinquando, id est lustrando, Charis. p. 62 P. dub.
quīnquo, āre = lustrare, sühnen, Charis. 81, 22.
quīnquō, āre, intr., faire des lustrations : Char. 81, 22.