"pertaining to or affecting the colon," 1906, from colon (n.2) + adjectival ending -ic.
colonel
colonial
colonialism
colonialist
colonialization
colonic
colonisation
colonise
colonist
colonization
colonize
)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}