IPA: /ˈvaʊtʃseɪf/
KK: /ˈvaʊtʃseɪf/
To grant or give something, often in a way that shows it is a favor or privilege.
The king chose to vouchsafe his blessing to the couple on their wedding day.
Past: vouchsafed
Past Participle: vouchsafed
Vouchsafe → It is formed from "vouch" (from Old French *vouchier*, meaning to call or summon) and "safe" (from Old English *sæf*, meaning secure or protected). The word means to grant or give something in a gracious or condescending manner, as if bestowing a favor.
Think of someone 'calling' ('vouch') to 'secure' ('safe') a favor for another — that's why vouchsafe means to graciously grant something.