Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings

easy; not difficult; simple; also used as a prefix equivalent to the English suffix "-able" or "-ible"

Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings

to change; to alter; to replace