intransitive. To persevere or persist in, remain obstinate or steadfast in (a course of action, purpose, opinion, assertion, etc.). Obsolete.

intransitive. With by. To stand firm by, remain true to; to act in accordance with, submit to, obey; = to bide by at bide, v. 2b(a). In early use…

transitive. To harden; to make steadfast in faith, etc. Obsolete.

to bide by (rarely at): to stand firm by, adhere to, stick to, maintain. †to bide upon: to dwell or insist upon (a point). Obsolete.

intransitive. To have as a belief or doctrine; to believe in. Also: to believe in the doctrine of (a person). Obsolete.

quasi-transitive. to stout out: to ‘brazen out’ (a matter); to persist obstinately in the defence of (a besieged place). Obsolete.

To make secure against attack; to gain and maintain (one's ground, a position, etc.). Also: †to secure (a prisoner) (obsolete).

transitive. figurative. To maintain (an opinion) through a period of trial. See also to summer and winter at summer, v.1 phrases c. Obsolete. rare.

To adhere resolutely to. Obsolete. rare.

transitive. To continue in, preserve, retain (a physical or mental condition, a position, attitude, etc.), in spite of disturbing influences.