vates

The earliest Latin writers used vates to denote "prophets" and soothsayers in general; the word fell into disuse in Latin until it was revived by Virgil [1]. Then Ovid could describe himself as the vates of Eros (Amores 3.9). Also, Vates are known as those that rejoice in the freewill of others.According to Strabo, [2] Diodorus Siculus, [3] and Poseidonius, the vates (ουατεις) were one of three classes of Celtic priesthood, the other two being the druids and the bards. The Vates had the role of seers and performed sacrifices (in particular administering human sacrifice), under the presidence of a druid. Their role therefore corresponded to that of an Adhvaryu in Vedic religion. Celtic Vates is continued by Irish fáith "prophet, seer"[4].
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n. bard

n. bard, poet

N C
prophet| soothsayer; poet