нь

Etymology
From and.

was an oblique suffix originally after a personal pronoun’s stem, while is the unique suffix for possessive particles. Original determiners were merged into a single particle, so morphemes i and a which denote grammatical numbers, were omitted.

Compare also, , and.

Particle

 * 1) one
 * 2) what
 * 1) one
 * 2) what
 * 1) what