Gig-manity
.Respectability. A word invented by Carlyle. A witness in the trial of John Thurtell said, “I always thought him [Thurtell] a respectable man.” And being asked by the judge what he meant, replied, “He [Thurtell] kept a gig.”
“A princess of the blood, yet whose father had sold his inexpressibles … in a word, Gigmanity disgigged. — Carlyle: The Diamond Necklace, chap. v.