1650s, from Latin testiculus (see testicle) + -ar.
testicular cancer
testate
testator
tester
testes
testicle
testicular
testify
testimonial
testimony
testis
testosterone
)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}