βρεκτέον
From LSJ
ἀλώπηξ, αἰετοῦ ἅ τ' ἀναπιτναμένα ῥόμβον ἴσχει → a fox, which, by spreading itself out, wards off the eagle's swoop
English (LSJ)
one must soak, Gp.3.8.
Greek (Liddell-Scott)
βρεκτέον: ῥημ. ἐπίθ., πρέπει τις νὰ ὑγράνῃ, νὰ βρέξῃ. Γεωπ. 3.8.
Spanish (DGE)
hay que empapar τὸν σῖτον Gp.3.8.