Etymology

green ban

Today it means: A ban instigated by a trade union on construction or demolition work on a site deemed to be of cultural, historical or environmental significance. Full definition →

First used 1973.
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The story

From green (“environmentally friendly”) + ban. First attested in Australia in 1973.

First known use, by meaning

  • From 1973. A ban instigated by a trade union on construction or demolition work on a site deemed to be of cultural, historical or environmental significance.

Etymology from Wiktionary, CC BY-SA 4.0.