ve·to 1 /'vē-tō/ n pl ve·toes [Latin, I forbid, refuse assent to]
1: an authoritative prohibition
2 a: a power vested in a chief executive to prevent permanently or temporarily the enactment of measures passed by a legislature
veto 2 vt ve·toed, ve·to·ing: to refuse to admit or approve; specif: to refuse assent to (a legislative bill) so as to prevent enactment or cause reconsideration see also override
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.