How art thou fallen
naphal (naw-fal')
to fall, in a great variety of applications (intransitive or causative, literal or figurative)
from heaven
shamayim (shaw-mah'-yim)
air, astrologer, heaven(-s).
O Lucifer
heylel (hay-lale')
the morning-star -- lucifer.
son
ben (bane)
a son (as a builder of the family name), in the widest sense (of literal and figurative relationship, including grandson, subject, nation, quality or condition, etc.
of the morning
shachar (shakh'-ar)
dawn (literal, figurative or adverbial) -- day(-spring), early, light, morning, whence riseth.
yalal (yaw-lal')
to howl (with a wailing tone) or yell (with a boisterous one) -- (make to) howl, be howling.
how art thou cut down
gada` (gaw-dah')
to fell a tree; generally, to destroy anything -- cut (asunder, in sunder, down, off), hew down.
to the ground
'erets (eh'-rets)
the earth (at large, or partitively a land) -- common, country, earth, field, ground, land, natins, way, + wilderness, world.
which didst weaken
chalash (khaw-lash')
to prostrate; by implication, to overthrow, decay -- discomfit, waste away, weaken.
the nations
gowy (go'-ee)
a foreign nation; hence, a Gentile; also (figuratively) a troop of animals, or a flight of locusts -- Gentile, heathen, nation, people.