From Proto-Italic *nokeō, causative of Proto-Indo-European *neḱ- (“perish, disappear”). Cognate with Middle Welsh angheu (“death”), Breton ankou, Old Irish éc, Latin noxius (“harmful”), Latin nex (“murder, violent death”) (as opposed to mors), Ancient Greek νεκρός (nekrós, “dead”), Old Persian 𐎻𐎴𐎰𐎹𐎫𐎹 (vi-nathayatiy, “he injures”), Avestan 𐬥𐬀𐬯𐬌𐬌𐬈𐬌𐬙𐬌 (nasyeiti, “disappears”), 𐬥𐬀𐬯𐬎 (nasu-, “corpse”), Sanskrit नश्यति (naśyati, “disappear, perish”).
- The injury caused may be physical or emotional.
- In practice, the only passive forms met with in Latin are the third-person singular forms.
1The present passive infinitive in -ier is a rare poetic form which is attested for this verb.