&c.

From an orthographic variant of etc., which used the ligature of et, &.

1612, George Wither, Epithalamia, Or Nuptiall Poems Upon the Most Blessed and Happie Mariage Betweene the High and Mightie Prince Frederick the Fifth, Count Palatine of the Rhein, &c., and Princesse Elizabeth, Sole Daughter to Iames, by the Grace of God, King of Great Britaine, France and Ireland
1739, W. (William) Webster, Remarks on The Divine Legation of Moses, &c. in Several Letters - If I had not done amongst them the Works that no other Man did, they had not had Sin, &c. John 15:24
1854, George Boole, w Chapter Signs and their Laws, Let us conceive, then, of an Algebra in which the symbols x, y, z, &c. admit indifferently of the values 0 and 1, and of these values alone.
1902, William Paton Buchan, Plumbing: A Text-book to the Practice of the Art Or Craft of the Plumber - Where a Geyser or hot-water heater is used it is a good and wise precaution to see that the bath-room, &c., when it is used is well ventilated.
1977, K. P. Punnoose, Bookdealers in India, Pakistan, Sri Lanka &c.