νῦ

French (Bailly abrégé)

(τό) :
la lettre nu (Ν).

Russian (Dvoretsky)

νῦ: τό indecl. ню (название греч. буквы Ν, ν).

Frisk Etymological English

Grammatical information: n.
Meaning: indecl. name of a letter (Achae. Trag., Pl., inscr., pap.).
Origin: LW [a loanword which is (probably) not of Pre-Greek origin] Sem.
Etymology: From Semit., cf. Hebr. nūn; cf Schwyzer 140.