Webster's Revised Unabridged Dictionary · 1913

Sire

Sire , noun

[French sire, originally, an older person. See Sir.]

1.
A lord, master, or other person in authority. See Sir. [Obsolete]
Pain and distress, sickness and ire, And melancholy that angry sire, Be of her palace senators. — Rom. of R
2.
A tittle of respect formerly used in speaking to elders and superiors, but now only in addressing a sovereign.
3.
A father; the head of a family; the husband.
Jankin thet was our sire [i.e., husband]. — Chaucer
And raise his issue, like a loving sire. — Shakespeare
4.
A creator; a maker; an author; an originator.
[He] was the sire of an immortal strain. — Shelley
5.
The male parent of a beast; -- applied especially to horses; as, the horse had a good sire.

Sire is often used in composition; as in grandsire, grandfather; great-grandsire, great-grandfather.

Sire , transitive verb

To beget; to procreate; -- used of beasts, and especially of stallions.