Archaic. In use during 12th - 13th centuries. From Latin verus 'id.'
From Proto-Italic *wēro- 'id.' From Proto-Indo-European *u̯eh1-ro- 'id.' From a root *u̯eh1-, perhaps meaning "to be true."
Also the origin of the surnames Vero and Veros.
Old Irish fír "true," Middle Welsh gwir 'id.,' Old Breton guir 'id.,' Old Cornish guir 'id.'
Old High German wār "belief"
Old Church Slavonic věra "faith," Russian véra 'id.,' Czech víra 'id.,' Polish wiara 'id.,' Slovene vę́ra 'id.'