Cite this: eDIL s.v. nacca or

Forms: nacc é

pron nothing, nought? ni di nacca dim .i. acht is du dim, gl. non de nihilo, Ml. 75b20 (where the word seems to qualify or form a compd. with dim; `non-something', Thes.). Cf. also: air nírbu chumachtach som. nacce, 72b4 (`he was not powerful, nay, not he' Thes. as if = nacc é; perh. not at all, by no means ); and Sg. 23a4 quoted s.v. nacc. taccu (-o), Wb. 15a2 , 19a18 , 25a3 , is prob. akin to this word.