- variant of in-2 before b, m, p: imbrute; immigrate; impassion.
- variant of in-3 before b, m, p: imbalance; immoral; imperishable.
- variant of in-1 before b, m, p: imbed; immure; impose.
prefix
variant of in- before -b-, -m-, -p-, in the sense of “not, opposite of” (immobile, impersonal) as well as “in, into” (implant, impoverish). See in-. In some English words it alternates with em- (1).