Orate pro nobis. = Pray for us.
"Per Orate" is not one word and there is no such thing.
Orare is pronounced "oh RAH ray" or "or AR ay".
Oration is the term. To orate is to speak
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Orator: a person who delivers an oration; a public speaker When the orator delivered his long speech to the school, he seemed very nervous.
It has no root word. Though it does share its etemology with the word orate.
He was a conquistador from Mexico who founded Santa Fe, New Mexico, about 1609.
The root word of "oration" is "orare," which comes from Latin and means "to speak" or "to pray."