rho
From LSJ
ὃν οὐ τύπτει λόγος οὐδὲ ῥάβδος → if words don't get through, neither a beating will | if the carrot doesn't work, the stick will not work either | whom words do not strike, neither does the rod
Latin > English (Lewis & Short)
rho: indecl., = ῥῶ,>
I the Greek name of the letter r, Cic. Div. 2, 46, 96; Aus. Epigr. 128.
Latin > French (Gaffiot 2016)
rhō, n. ind. (ῥῶ), rho [lettre de l’alphabet grec] : Cic. Div. 2, 96.
Latin > German (Georges)
rhō, n. indecl. (ῥῶ), der griechische Buchstabe R, Cic. de div. 2, 96. Auson. epigr. 128, 10.
Latin > English
rho undeclined N N :: Greek name of the letter R