In-

inhold, inmove, intake, inthrill

inborn, inbound

infield, infighting, insight, intalk, inwork

il- before l, e.g. illusion im- before b, m, or p, e.g. imperil ir- before r, e.g. irrigate

ig- before n, e.g. ignoble il- before l, e.g. illegal im- before b, m, or p, e.g. improper ir- before r, e.g. irresistible

incredulity

inannihilable

inappellable

inassimilable