πευστέον
From LSJ
οὐχ οὗτός ἐστιν ὁ τοῦ τέκτονος υἱός; οὐχ ἡ μήτηρ αὐτοῦ λέγεται Μαριὰμ καὶ οἱ ἀδελφοὶ αὐτοῦ Ἰάκωβος καὶ Ἰωσὴφ καὶ Σίμων καὶ Ἰούδας; → “Isn't he the carpenter's son? Isn't his mother's name Mary, and aren't his brothers Jacob and Joseph and Shimon and Judah? (Matthew 13:55)
English (LSJ)
(πυνθάνομαι) A one must inquire, Pl.Sph.244b.
Greek (Liddell-Scott)
πευστέον: ῥημ. ἐπίθ. τοῦ πυνθάνομαι, δεῖ πυνθάνεσθαι, Πλάτ. Σοφιστ. 244Β.
Russian (Dvoretsky)
πευστέον: adj. verb. к πυνθάνομαι.
Dutch (Woordenboekgrieks.nl)
πευστέον, adj. verb. van πεύθομαι of πυνθάνομαι, er moet nagevraagd worden.