Past tense of fresh (rare verb); made fresh or refreshed, or replaced with fresh supplies (in some dialects).
From fresh (adjective/verb) + -ed past tense/participle suffix. The verb 'to fresh' is archaic and rarely used in modern English.
This word is so archaic that it has almost vanished from English—it survives mainly in hunting terminology where 'freshed water' means water that's been replaced, but most English speakers wouldn't recognize it.
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