Simple past tense and past participle of make merry.
Wiktionary
Made-merry Sentence Examples
Grouped around their belfry-towers and organized within their gilds, they made merry in their free jocular language over their own hardships, and still more over the vices of their lords.
They cleared the thickly forested land, built log dwellings, made merry with Highland games at Johnson Hall gatherings with the friendly Mohawks.