彼方此方

Etymology 1
Shortening of あちあり、こちあり (achi ari, kochi ari “some are over there, some are here”).

Compare.

Pronoun

 * 1) here and there

Adjective

 * 1) muddled

Etymology 2
Possibly from or ; compare archaic. Alternatively, perhaps from. Attested from the 13th century.

Pronoun

 * 1) here and there

Adjective

 * 1) reversed, inverted, opposite

Etymology 3
Sound shift from achikochi.

Pronoun

 * 1) here and there