(Hebrew). The hippopotamus; once thought to be the rhinoceros. (See Job xl. 15.)
Behold! in plaited mail, Behemoth rears his head.
Thomson: Summer, 709, 710.
The word is generally, but incorrectly, pronounced Behemoth; but Milton, like Thomson, places the accent on the second syllable.
Scarce from his mold Behemoth, biggest born of earth, upheaved His vastness.
Milton: Paradise Lost, vii, 471.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894