Simple past tense and past participle of seesaw.(verb)
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Use "seesawed" in a sentence
"He presently sat down and took out a _Grotius De Veritate_, over which he "seesawed" so violently that the mob ran back to see what was the matter."
"It was the fitful confusion of stop-start fiscal spending that seesawed the economy between hopeful improvement on the one hand, and wrenching cut-backs and consumption taxes urged by austerity-preaching deficit hawks on the other."
"After a grueling stretch in the past week where the Dow Jones Industrial Average seesawed between triple-digit gains and losses, only one of the 10 initial public offerings that had been scheduled to debut actually made it out."