Simple past tense and past participle of companion.(verb)
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Use "companioned" in a sentence
"Tony Perry had "companioned" (as some had heard her put it) a number of men within the twenty-mile radius that took in both Hebrides and La Porte."
"It should surprise no one that this bizarre scene inspired the first collaboration between gonzo journalist Hunter S. Thompson and artist Ralph Steadman, who companioned Thompson's addled prose with grotesque sketches of the race's denizens."
"When he saw that they looked on him with eyes of affection, he inclined to them and companioned with them and took up his abode with them, flying away in the morning whither he would and returning at eventide to pass the night by side of them."