What does acton mean?
The definition of acton
Ac”ton, n.
Etym: [OF. aketon, auqueton, F. hoqueton, a quilted jacket, fr. Sp. alcoton, algodon, cotton. Cf. Cotton.]

A stuffed jacket worn under the mail, or (later) a jacket plated with mail. [Spelled also hacqueton.] [Obs.] Halliwell. Sir W. Scott.