ὑδασιστεγής
From LSJ
τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
English (LSJ)
ές,
A water-proof, πῖλος AP6.90 (Phil.). [ῡ l. c., metri gr.]
German (Pape)
[Seite 1172] ές, das Wasser abhaltend, wasserdicht, πῖλος, Philip. 5, 5 (VI, 90), wo υ lang gebraucht ist; vgl. Lob. Phryn. 688.
Greek (Liddell-Scott)
ὑδᾰσιστεγής: -ές, ὡς τὸ ὑδατοστεγής, ὁ στέγων, ἐμποδίζων τὸ ὕδωρ νὰ εἰσέλθῃ, πῖλος Ἀνθ. Π. 6. 90· πρβλ. Λοβέκ. εἰς Φρύν. 688. [ῡ ἐν τῇ Ἀνθ. ἔνθ’ ἀνωτ., χάριν τοῦ μέτρου].