A surname transferred from the nickname.

(also figuratively) An accessory that can be bolted on or otherwise attached.

Of an accessory: capable of being bolted on or otherwise attached. / (figuratively, computing) Used to extend an existing system, operating as an add-on or plug-in.

simple past tense and past participle of bolt

present participle of bolt

An act of bolting or running away. / A sifting, as of flour or meal. / (law) A private arguing of cases for practice by students, as in the Inns of Court.

To connect or assemble pieces using a bolt. / To secure a door by locking or barring it. / (intransitive) To flee, to depart, to accelerate suddenly.

A sieve, especially a long fine sieve used in milling for bolting flour and meal; a bolter.

To sift, especially through a cloth. / To sift the bran and germ from wheat flour. / To separate, assort, refine, or purify by other means.

Suddenly; straight; unbendingly.