Definition of "pantaloon"

Hic ibat, as I told you before, —Simois, I amLucentio, hic est, son unto Vincentio of Pisa,—Sigeia tellus, disguised thus to get your love; —Hic steterat, and that Lucentio that comesa-wooing, — Priami, is my man Tranio, —regia, bearing my port, celsa senis, that wemight beguile the old pantaloon.

c. 1590–1592 (date written), William Shakespeare, “The Taming of the Shrew”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act III, scene i], line 37

They constantly followed the virtuous pair, who as constantly eluded their grasp, whilst they themselves met with every kind of misfortune, until they became clown and pantaloon, […] .

1882, William Ballantine, Some Experiences of a Barrister's Life, page 234

The Bishop is a lean and slippered pantaloon, at least in his old clerical garments which he thinks good enough for the sea.

1960, Lady Caroline Lane Reynolds Slemmer Jebb, With Dearest Love to All: The Life and Letters of Lady Jebb, page 213