ἀποθεωρητέον
From LSJ
βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
English (LSJ)
A one must consider, contemplate, Plu.2.30a. 2 ἀ. μή .. one must take care not... Herod.Med. ap. Orib.7.8.10.
Greek (Liddell-Scott)
ἀποθεωρητέον: ῥημ. ἐπίθ., δεῖ ἀποθεωρεῖν, Πλούτ. 2. 30Α.
French (Bailly abrégé)
adj. verb. de ἀποθεωρέω.