=Inseparable prefixes= have no meaning in themselves and cannot stand
alone. The most important are:--
=A-=, _on_: away, alive; _at_: ahead: _of_: akin.
=And-=, _against_ (Greek anti-): answer (sweri-an, to declare).
=Be-=, old form of _by_: betimes, bypath; in verbs: bedaub (daub all
over), bewail (wail for), benumb (make numb).
=For-=, intensifies the meaning, (thoroughly): forbear, forlorn,
forswear, forbid (command against), forego.
=Fore-=, _first_, _before_: foresight, forejudge.
=Mis-=, _wrong_, _wrongly_: misdeed, miscall, mislead.
=Un-=, _not_: unholy, unafraid. In verbs, it indicates the reverse of
the simple verb: unbind, unfold, unmask.
=With-=, _against_, (_from_): withstand, withers (of a horse),
withhold.
=Separable Prefixes.=
=After=, _after_: aftergrowth, aftermath (= after the mowing),
afterthought.
=All= (old Eng. _al_), _all_: almost, alone.
=Forth=, _forth_: forthcoming.
=In= (French en), _in_: inborn, illusion, import, irruption; encase,
enclose; entwine, embody, employ; enable = _to make_ able, embitter.
=Off= or =of=, _off_, _from_: offal = what falls off, offspring.
=On=, _against_, _towards_: onset, onslaught, onward.
=Out= has a sense of direction or surpassing, (_beyond_): outcast,
outpost, outrun, outshine; utter, utmost (_i.e._, outer, outmost).
=Over=, _over_, _above_: overhead, overcoat, overturn, overspread,
over-bold.
=Through= = thorough: throughout, thoroughfare, thoroughbred,
through-ticket.
=Twi=, _two_, _double_: twice, twilight = double or doubtful light,
twill, twin = double, twine, twist = two strands twisted.
=Under=, _below_, _lower_: underhand, underlie, underneath, undertone.
=Up=, _up_: upland, upshot, upbraid, uphold, uprise, upward.