Webster's Revised Unabridged Dictionary · 1913

Mister

Mister , noun

[See Master, and compare Mistress.]

A title of courtesy prefixed to the name of a man or youth. It is usually written in the abbreviated form Mr.
To call your name, inquire your where, Or what you think of Mister Some-one's book, Or Mister Other's marriage or decease. — Mrs. Browning

Mister , transitive verb

To address or mention by the title Mr.; as, he mistered me in a formal way. [Colloquial]

Mister , noun

[Old French mistier trade, office, ministry, need, French métier trade, from Latin ministerium service, office, ministry. See Ministry, Mystery trade.]

1.
A trade, art, or occupation. [Obsolete]
In youth he learned had a good mester. — Chaucer
2.
Manner; kind; sort. [Obsolete] — Spenser
But telleth me what mester men ye be. — Chaucer
3.
Need; necessity. [Obsolete] — Rom. of R

Mister , intransitive verb

To be needful or of use. [Obsolete]
As for my name, it mistereth not to tell. — Spenser