[Middle English Paraclit, from Old French Paraclet, from Latin Paracltus, from Greek Parakltos, from parakalein, to invoke : para-, to the side of; see para-1 + kalein, kl-, to call; see kel-2 in Indo-European roots.]
Paraclete – 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