-·light·ed or -·lit·, -·light·ing
Informal to approve or give permission to proceed with (a project, funding proposal, etc., esp. a proposed film script)
Origin of greenlight; from green light
transitive verbgreen·light·ed or green·lit , green·light·ing, green·lights or green-light·ed or green-lit or green-light·ing or green-lights Informal
To give permission to proceed with: “[He] commissioned the pilot that became ‘Captain Kangaroo’ and greenlighted the series” (Variety).
(third-person singular simple present greenlights, present participle greenlighting, simple past and past participle greenlit or greenlighted)
From green light