The Collaborative International Dictionary of English v.0.48:
Ramble \Ram"ble\ (r[a^]m"b'l), v. i. [imp. & p. p. Rambled
(r[a^]m"b'ld); p. pr. & vb. n. Rambling (r[a^]m"bl[i^]ng).]
[For rammle, fr. Prov. E. rame to roam. Cf. Roam.]
1. To walk, ride, or sail, from place to place, without any
determinate object in view; to roam carelessly or
irregularly; to rove; to wander; as, to ramble about the
city; to ramble over the world.
He that is at liberty to ramble in perfect darkness,
what is his liberty better than if driven up and
down as a bubble by the wind? --Locke.
2. To talk or write in a discursive, aimless way.
3. To extend or grow at random. --Thomson.
Syn: To rove; roam; wander; range; stroll.