Expel, v. t. [imp. & p. p. Expelled, p. pr. & vb. n.. Expelling.]
Etymology: [L. expellere, expulsum; ex out + pellere to drive: cf.F. expeller. See Pulse a beat.]
1. To drive or force out from that within which anything is contained, inclosed, or situated; to eject; as to expel air from a bellows. Did not ye . . . expel me out of my father's house Judg. Xi. 7.
2. To drive away from one's country; to banish. Forewasted all their land, and them expelled. Spenser. . He shell expel them from before you . . . and ye shell possess their land. Josh. xxiii. 5.
3. To cut off from further connection with an institution of learning, a society, and the like; as, to expel a student or member.
4. To keep out, off, or away; to exclude. "To expel the winter's flaw." Shak.
2 more senses
5. To discharge; to shoot. [Obs.] Then he another and another [shaft] did expel. Spenser. .
Syn. -- To banish; exile; eject; drive out. See Banish.
Shades of meaning
Fernald has no entry of its own for expel; he lists it under banish, exterminate.
Where he writes about it:
To expel is to drive out with violence or rudeness, and so often with disgrace. — from banish