From The Collaborative International Dictionary of English v.0.48:
Don \Don\, v. t. [imp. & p. p. Donned; p. pr. & vb. n.
Donning.] [Do + on; -- opposed to doff. See Do, v. t.,
7.]
To put on; to dress in; to invest one's self with.
[1913 Webster]
Should I don this robe and trouble you. --Shak.
[1913 Webster]
At night, or in the rain,
He dons a surcoat which he doffs at morn. --Emerson.
[1913 Webster]