"pertaining to roots," 1830, from Modern Latin radicula, diminutive of Latin radix "root" (from PIE root *wrād- "branch, root") + -ar.
radicalize
radically
radicand
radicant
radicle
radicular
radio
radio-
radioactive
radioactivity
radio-carbon
)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}