Etymology of the Latin word testari
the Latin word
testari (give as evidence; bear witness; make a will)
derived from the Latin word
testis (testicle, a witness)
derived from the Proto-Indo-European root
*trei-Derivations in Latin
testamentum,
testatus,
protestari,
detestari,
contestariDerivations in other languages
French
tester, Spanish
testar