μέσσατος
From LSJ
ὁ δὲ παράκλητος, τὸ πνεῦμα τὸ ἅγιον ὃ πέμψει ὁ πατὴρ ἐν τῷ ὀνόματί μου, ἐκεῖνος ὑμᾶς διδάξει πάντα καὶ ὑπομνήσει ὑμᾶς πάντα ἃ εἶπον ὑμῖν → but the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you
English (LSJ)
η, ον, irreg. Sup. of μέσσος,
A midmost, ἐν μεσσάτῳ for ἐν μέσῳ, Il.8.223; Att. μέσατος, υἱός Ar.V.1502, cf. Men.267, Theoc. 21.19, IG14.2012A33 (Sulp. Max.), Opp.C.1.112, D.P.204:—in later Ep. μεσσάτιος, Call.Dian.78, D.P.296, Opp.C.4.442. (For the form, cf. νέατος, τρίτος τρίτατος.)