Webster's Revised Unabridged Dictionary · 1913

Host

Host (hōst) , noun

[Late Latin hostia sacrifice, victim, from hostire to strike.]

(Roman Catholic Church) The consecrated wafer, believed to be the body of Christ, which in the Mass is offered as a sacrifice; also, the bread before consecration.

In the Latin Vulgate the word was applied to the Savior as being an offering for the sins of men.

Host (hōst) , noun

[Old English host, ost, Old French host, ost, from Latin hostis enemy, Late Latin, army. See Guest, and compare Host a landlord.]

1.
An army; a number of men gathered for war.
A host so great as covered all the field. — Dryden
2.
Any great number or multitude; a throng.
And suddenly there was with the angel a multitude of the heavenly host praising God. — Luke ii. 13
All at once I saw a crowd, A host, of golden daffodils. — Wordsworth

Host (hōst) , noun

[Old English host, ost, Old French hoste, oste, French hôte, from Latin hospes a stranger who is treated as a guest, he who treats another as his guest, a hostl prob. from hostis stranger, enemy (akin to English guest a visitor) + potis able; akin to Sanskrit pati master, lord. See Host an army, Possible, and compare Hospitable, Hotel.]

1.
One who receives or entertains another, whether gratuitously or for compensation; one from whom another receives food, lodging, or entertainment; a landlord. — Tennyson
Fair host and Earl. — Chaucer
Time is like a fashionable host, That slightly shakes his parting guest by the hand. — Shakespeare
2.
(Biology) Any animal or plant affording lodgment or subsistence to a parasitic or commensal organism. Thus a tree is a host of an air plant growing upon it.

Host , transitive verb

To give entertainment to. [Obsolete] — Spenser

Host , intransitive verb

To lodge at an inn; to take up entertainment. [Obsolete]
Where you shall host. — Shakespeare