Emily Dickinson Lexicon

HOOP, v.i. [Sax. heafian, heofian, to howl, to lament, to weep; also hweopan, to whip, to weep, to howl, to whoop; the latter is written also weopan, wepan, to weep; Goth. wopyan, to whoop. The Sax. heafian seems to be connected with heave, and the sense is probably to raise or throw the voice. Whether heofian and hweopan are radically the same word, is not certain; most probably they are, and whoop and weep are evidently the same. Weeping, in rude ages, is by howling loud outcries. See Whoop, the same word differently written.]

To shout; to utter a loud cry, or a particular sound by way of call or pursuit.