[f. CHILL v. + -ER1.] One who or that which chills. Also in comb., as beer-chiller.

1

1798.  Mary Wollstonecr., Posth. Wks., III. l. 149. Tormented, as I now am, by these North-east chillers … Give me, gracious Heaven! at least, genial weather.

2

1836.  [see BEER sb.1 4].

3