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 heed; to obey; to follow advice or a command

an elderly person; an old man or woman; the aged

words; talk; what is said

to suffer a loss; to come to grief; to get the worst of it or be taken advantage of

Used as a linker to introduce the time, place, or situation of an action, meaning "at", "in", or "on".

At this very moment; current; the present time