catascopus

From LSJ

βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόνonce limpid waters are stained with mud, you'll never find a drink

Source

Latin > English (Lewis & Short)

cătascŏpus: i, m., = κατάσκοπος (exploring, spying (cătascŏpĭum, ii, n., Gell. 10, 25 fin.), = κατασκόπιον,
I a lookoutship, a spy-ship, a vessel sent out to reconnoitre (pure Lat. navigium speculatorium), Auct. B. Afr. 26; cf. Isid. Orig. 19, 1, 18.

Latin > English

catascopus catascopi N M :: light vessel for reconnoitering

Latin > Chinese

catascopus, i. m. :: 探子探事者