Simple past tense and past participle of tallow.(verb)
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Use "tallowed" in a sentence
"In the tight little harbor at Tadoussac, their bottoms were cleaned, tarred, and tallowed."
"_Grete Herball_, "whereof is made a manner of lynke if it be tallowed.""
"And being at anchor, presently we hove out all the maize a land, saving three butts which we kept for our store: and carrying all our provisions ashore, we brought both our frigates on the careen, and new tallowed them."