My root
sheresh (sheh'-resh)
a root -- bottom, deep, heel, root.
was spread out
pathach (paw-thakh')
to open wide; specifically, to loosen, begin, plough, carve
by the waters
mayim (mah'-yim)
water; figuratively, juice; by euphemism, urine, semen -- + piss, wasting, water(-ing, (-course, -flood, -spring).
and the dew
tal (tal)
dew (as covering vegetation) -- dew.
lay all night
luwn (loon)
to stop (usually over night); by implication, to stay permanently; hence (in a bad sense) to be obstinate (especially in words, to complain)
upon my branch
qatsiyr (kaw-tseer')
severed, i.e. harvest (as reaped), the crop, the time, the reaper, or figuratively; also a limb (of a tree, or simply foliage) -- bough, branch, harvest (man).