Webster's Revised Unabridged Dictionary · 1913

Occur

Occur , intransitive verb

[Latin occurrere, occursum; ob (see Ob-) + currere to run. See Course.]

1.
To meet; to clash. [Obsolete]
The resistance of the bodies they occur with. — Bentley
2.
To go in order to meet; to make reply. [Obsolete]
I must occur to one specious objection. — Bentley
3.
To meet one's eye; to be found or met with; to present itself; to appear.
In Scripture, though the word heir occur, yet there is no such thing as “heir” in our author's sense. — Locke
4.
To happen; to take place; as, I will write if opportunity occurs.
5.
To come to the mind; to arise in the mind; to suggest itself; to be presented to the imagination or memory; -- of an idea or thought; as, it never occurred to me to call John to ask.
There doth not occur to me any use of this experiment for profit. — Bacon