Meaning

noun the third person in the Trinity; Jesus promised the Apostles that he would send the Holy Spirit after his Crucifixion and Resurrection; it came on Pentecost

originFrom Old French paraclit, from Late Latin paraclētus, from Ancient Greek παράκλητος (paráklētos, “one called to help, helper; comforter; protector, defender; (legal) advocate”), from παρά (pará, “beside”) + κλητός (klētós, “called, invited [one]”). The Greek term is used four times in the Gospel of John as an epithet of the Holy Spirit.

Etymology from Wiktionary, CC BY-SA 3.0