ὑπηρέσιον
From LSJ
ἀλλ᾽ οὐδὲ εἷς τέκτων ὀχυρὰν οὕτως ἐποίησεν θύραν, δι᾽ἧς γαλῆ καὶ μοιχὸς οὐκ εἰσέρχεται → but no carpenter ever made a door so secure that a weasel or a womanizer could not pass through it
English (LSJ)
τό,
A cushion on a rower's bench, Th.2.93, Isoc.8.48, PCair.Zen.54.44 (iii B. C.); εἰς ὑ. καὶ κώπην, i.e. to rowers' service, Plu.Them.4. 2 riding-pad or saddle-cloth, D.S.20.4. II rowers' pay, AB312, Phot. III = ὑπηρετικὸν πλοῖον, Eratosth. ap.Str.2.1.23.