The story
From no + plural of worry (“concern, cause for anxiety”), but used flexibly.
Etymology from Wiktionary, CC BY-SA 4.0.
no worries
Today it means: Be reassured that it does not bother me; I am not concerned. Full definition →
Today it means: Be reassured that it does not bother me; I am not concerned. Full definition →
From no + plural of worry (“concern, cause for anxiety”), but used flexibly.
Etymology from Wiktionary, CC BY-SA 4.0.