dreariness > sorrow; horror
4 Choking the remnant of his plaintive speech,
plaintive > {Plaintive; also: pertaining to a plaintiff}
5 As if his days were come to their last reach.
last reach > utmost extent; hence: end
6 Which when she heard, and saw the ghastly fit
ghastly > terrible
7 Threatening into his life to make a breach, 8 Both with great ruth and terror she was smitten,
ruth > pity
9 Fearing lest from its cage the weary soul would flit.