Comforter \Com"fort*er\, n.

1. One who administers comfort or consolation.

Let no comforter delight mine ear But such a one whose wrongs do suit with mine. --Shak.

2. (Script.) The Holy Spirit, -- referring to his office of comforting believers.

But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things. --John xiv. 26.

3. A knit woolen tippet, long and narrow. [U. S.]

The American schoolboy takes off his comforter and unbuttons his jacket before going in for a snowball fight. --Pop. Sci. Monthly.

4. A wadded bedquilt; a comfortable. [U. S.]

Job's comforter, a boil. [Colloq.]

Source: Webster's Revised Unabridged Dictionary (1913)