كہ

ki [Pehl. and Zend ka; S. िक, pronom. base], interrog. and rel. pronoun, Who? what? which? wherefore? why? (called kāf-ě-istifhām; it is sometimes used, like kyā, as the untranslated sign of interrogation);—who, which, that, as, whoever (called kāf-ě-bayān or bayānīya, or kāf-ě-ṣila);—conj. That, in order that, to the end that, so that, for that, in that, because, for; if; and; or; whether; namely, to wit, saying, thus, as follows (cf. Gr. ὅτι); lest; when; but even;—God grant that (called kāf-ě-du’ā`īya);—than (expressing comparison,=az). (In some cases ki is untranslatable but idiomatically indispensable; and in some cases it might be omitted without violence to the idiom.)