(obsolete) Otherwise.

An other, another (person, etc), more often rendered as another. / The other one; the second of two.

See other (determiner) below. / Second. / Alien. / Different. / (obsolete) Left, as opposed to right.

Not the one or ones previously referred to.

(transitive) To regard, label, or treat as an "other", as not part of the same group; to view as different and alien. / (transitive) To treat as different or separate; segregate; ostracise.

(philosophy, politics) gerund of other: the process of perceiving or portraying someone or something as essentially alien or different.

present participle of other

plural of othering

(uncountable) The quality of being different or distinct. / (countable) The result or product of being different or distinct.

plural of otherness