klipp und klar

Etymology
Borrowed in the late 19th century from, attested since the 18th century. The adjective, which today occurs only in this idiom, is derived from , itself akin to and roughly synonymous with. It is plausible that it originally referred to the handshake by which a deal is settled.

Adjective

 * 1) plain and clear; very clear

Declension
Only the latter adjective is declined, as above. See.