Simple past tense and past participle of breakfast.(verb)
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Use "breakfasted" in a sentence
"Mascall breakfasted here; he eats a great deal of Butter."
"I "breakfasted" again and again with Adolphe Sax, and had always the same fare -- "un bifteck et des oeufs sur le plat." ..."
"Started from Shefford ill, and without food — Dined or breakfasted, at Wellwyn, got to town rather better, sleept with little Jack who had the tooth ache all night, had only 2 hours sleep. —"