πευστέον
From LSJ
Οὕτως γὰρ ἠγάπησεν ὁ Θεὸς τὸν κόσμον, ὥστε τὸν Υἱὸν τὸν μονογενῆ ἔδωκεν, ἵνα πᾶς ὁ πιστεύων εἰς Αὐτὸν μὴ ἀπόληται ἀλλ᾽ ἔχῃ ζωὴν αἰώνιον → For God so loved the world that he gave his only begotten Son that whosoever believeth in him should not perish but have everlasting life (John 3:16)
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.