/ ˈdwɪndl; NAmE / verb
[ v ] dwindle (away) (to sth) to become gradually less or smaller :
dwindling audiences
Support for the party has dwindled away to nothing.
Membership of the club has dwindled from 70 to 20.
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WORD ORIGIN
late 16th cent.: frequentative of Scots and dialect dwine fade away , from Old English dwīnan , of Germanic origin; related to Middle Dutch dwīnen and Old Norse dvína .