Webster's Revised Unabridged Dictionary · 1913

Orb

Orb (ôrb) , noun

[Old French orb blind, from Latin orbus destitute.]

(Architecture) A blank window or panel. [Obsolete] — Oxf. Gloss

Orb , noun

[French orbe, from Latin orbis circle, orb. Compare Orbit.]

1.
A spherical body; a globe; especially, one of the celestial spheres; a sun, planet, or star.
In the small orb of one particular tear. — Shakespeare
Whether the prime orb, Incredible how swift, had thither rolled. — Milton
2.
One of the azure transparent spheres conceived by the ancients to be inclosed one within another, and to carry the heavenly bodies in their revolutions.
3.
A circle; esp., a circle, or nearly circular orbit, described by the revolution of a heavenly body; an orbit.
The schoolmen were like astronomers, which did feign eccentrics, and epicycles, and such engines of orbs. — Bacon
You seem to me as Dian in her orb. — Shakespeare
In orbs Of circuit inexpressible they stood, Orb within orb. — Milton
4.
A period of time marked off by the revolution of a heavenly body. [Rare] — Milton
5.
The eye, as luminous and spherical. [Poetic]
A drop serene hath quenched their orbs. — Milton
6.
A revolving circular body; a wheel. [Poetic]
The orbs Of his fierce chariot rolled. — Milton
7.
A sphere of action or influence. — Wordsworth
But in our orbs we'll live so round and safe. — Shakespeare
8.
Same as Mound, a ball or globe. See 1st Mound.
9.
(Military) A body of soldiers drawn up in a circle, as for defense, esp. infantry to repel cavalry.

Orb (ôrb) , transitive verb

1.
To form into an orb or circle. [Poetic] — Milton
2.
To encircle; to surround; to inclose. [Poetic]
The wheels were orbed with gold. — Addison

Orb , intransitive verb

To become round like an orb. [Poetic]
And orb into the perfect star. — Tennyson