Simple past tense and past participle of refloat.(verb)
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Use "refloated" in a sentence
"Low tides for the next two weeks could prevent the ship from being refloated, meaning it might be weeks before the ship gets off the reef."
"Unlike many others, it was refloated on the stock market early this year, leaving investors with a healthy profit."
"My hunch, by the way, is that this story was floated (or refloated) by Hillary Clinton staff folks, probably operatives from her 2008 campaign, as a way of generating talk about her political strengths and to keep her on the radar as a politician with a future."