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v. Simple past tense and past participle of backstop.

"But it writes policies for less than 10% of the market, down from pre-crisis levels when insurers backstopped half the market."

backstopped    backstopping    backstops   

play    fence    fencing    infielder    precaution   

back-stop net   

benchtop    24-month    pillar-box    spy-ray    sphygmomanometer