secessiones

From LSJ

οἵ γε καὶ ἐν τῷ παρόντι ἀντιπάλως μᾶλλον ἢ ὑποδεεστέρως τῷ ναυτικῷ ἀνθώρμουν → whose navy, even as it was, faced the Athenian more as an equal than as an inferior

Source

Latin > English (Lewis & Short)

secessĭōnes: narrationes, Fest. p. 336 Müll.
I N. cr. [perh. from secere; whence insecere, inseque, and insectiones, = narrationes, acc. to Gell. 18, 9, 8].