El diccionario latín-ruso

• Contains over 200,000 words and phrases, including words from Vulgar Latin texts, and can be used to read and translate all the major surviving literary works, historical texts, legal documents, the most important texts of Christian patristic writings, and some works that were written in Latin before the second half of the 7th century.

cos

1. cōs, cōtis f.

   точильный камень, оселок (aliquid cote acuere H; cote virtutis suae ferrum acuere Fl)

2. Cōs и Coōs (Cous), gen. Coī f.

   Кос (Кой), один из Спорадских о-вов у берегов Карий, к сев.-зап. от Родоса; родина врача Гиппократа и живописца Апеллеса C, O, H etc.