English Theasurus that shows all the ways the English word is translated from the original Greek and Hebrew.

English Theasurus from the Hebrew and Greek Strong's Dictionary

mightily 1722 ** en ** about, after, against, + almost, X altogether, among, Xas, at, before, between, (here-)by (+ all means), for (...sake of), + giveself wholly to, (here-)in(-to, -wardly), X {mightily}, (because) of,(up-)on, [open-]ly, X outwardly, one, X quickly, X shortly, [speedi-]ly, Xthat, X there(-in, -on), through(-out), (un-)to(-ward), under, when,where(-with), while, with(-in).

mightily 2159 ** eutonos ** {mightily}, vehemently.

mightily 2394 -- chozqah -- force, {mightily}, repair, sharply.

mightily 2596 ** kata ** about, according as (to), after, against, (when they were)X alone, among, and, X apart, (even, like) as (concerning, pertaining totouching), X aside, at, before, beyond, by, to the charge of,[charita-]bly, concerning, + covered, [dai-]ly, down, every, (+ far more)exceeding, X more excellent, for, from...to, godly, in(-asmuch, divers,every, -to, respect of), ...by, after the manner of, + by any means, beyond(out of) measure, X {mightily}, more, X natural, of (up-)on (X part), out(of every), over against, (+ your) X own, + particularly, so,through(-oughout, -oughout every), thus, (un-)to(-gether, -ward), Xuttermost, where(-by), with.

mightily 6743 -- tsalach -- break out, come ({mightily}), go over, be good, be meet,be profitable, (cause to, effect, make to, send) prosper(-ity, -ous,-ously).

mightily 7580 sha/ag -- -- X {mightily}, roar.