v. [f. ETHER + -(I)FY.] trans. To make or convert into an ether.

1

1857.  W. A. Miller, Elem. Chem., III. § 990. 161. Various salts are … capable of etherifying alcohol, if heated strongly with it under pressure.

2

1875.  Ure, Dict. Arts, II. 309 s.v. Ether, The stronger mineral acids etherify the alcohols directly.

3