also life-long, "continuing a lifetime," 1855, from life (n.) + long (adj.).
a lifelong friend
his lifelong study of Greek art
from lifelong habit
life-boat
lifeguard
lifeless
lifelike
life-line
lifelong
lifer
life-raft
life-saving
life-size
lifespan
)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}