كلا

Etymology 1
From.

Pronoun

 * 1) both

Usage notes

 * inflects for gender to match the noun or pronoun it modifies. It only inflects for case when followed by a pronoun; when followed by a noun, it is always in the nominative case regardless of syntax. The following noun or pronoun is always in the genitive dual (an idafa construction). Thus has the nominative form, despite the syntax calling for a genitive, but  uses the genitive form  in the same syntactic context.

Interjection

 * 1)  no; no way, absolutely not; never, by no means
 * 2)  indeed, verily
 * 3)  no!
 * 1)  indeed, verily
 * 2)  no!