1711, up-a-daisy, baby talk extension of up (adv.). Compare lackadaisical. A word upsee was in use in English late 17c. in phrases such as upsee-Dutch "in the Dutch style" (of drinking), from Dutch op zijn, and also occasionally as an adverb, "extremely," and could have had an influence on this word.
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}