"scientific study of birds' nests," 1875, from Greek kalia "a dwelling, hut, nest" (from PIE root *kel- (1) "to cover, conceal, save") + -ology. Related: Caliological.
calif
California
caliginous
caligraphy
Caligula
caliology
caliper
caliph
caliphate
calisthenics
call
)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}