1793, verbal noun from flog (v.). Earlier in the same sense was floggation (1680s).
flocculation
flocculent
flock
floe
flog
flogging
flood
flood-gate
floodlight
flood-plain
flood-tide
)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}