I. dick ‧ y 1 /ˈdɪki/ BrE AmE adjective British English old-fashioned
[ Date: 1700-1800 ; Origin: Origin unknown ]
weak, and likely to break or not work properly
dicky heart/ticker (=a heart that is weak and not very healthy)
II. dicky 2 BrE AmE , dickey noun [countable]
[ Date: 1700-1800 ; Origin: Probably from the male name Dicky ]
a false shirt front or collar worn under a suit or dress