The story
Ellipsis of Lord have mercy on me; analyzable as mercy me in subjunctive or imperative mood.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: Expressing surprise or alarm. Full definition →
Ellipsis of Lord have mercy on me; analyzable as mercy me in subjunctive or imperative mood.
Etymology from Wiktionary, CC BY-SA 4.0.