aor. προκαλέσσατο, imp. προκάλεσσαι, subj. προκαλέσσεται: challenge; χάρμῃ, μαχέσασθαι, Η 21, Il. 3.432.
middle voice from πρό and καλέω; to call forth to oneself (challenge), i.e. (by implication) to irritate: provoke.