"habit of living on dry food," especially as a form of fasting, 1650s, from xero- "dry" + -phagy "eating" (see -phagous).
Xeres
xeric
xero-
xeroderma
xerography
xerophagy
xerophilous
xerophyte
xerosis
xerotic
Xerox
)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}