The word is χαρα (CHARA) and is found frequently through the Gospels of Matthew and Luke, and especially in John, but only once in Mark. It is absent from the first letter to the Corinthians, yet it is used three times in the verb form (χαιρω). Paul employs the word frequently in the second letter as well as the verb form. No matter which modern translation us may use, the word is woven throughout the scriptures. I believe that this is no phenomena, because the scriptures produce this emotion by what the Good News reveals. Have you figured it out yet? The word so frequently written in the scriptures is “JOY.” Who could read of the saving power of Jesus, look at their own sinful life, and realize Christ made forgiveness and redemption a reality for every soul destined to Hell’s fires. To realize we do have hope in Jesus is such good news. With such hope it cannot help producing a joy that bubbles over; so when you see others smiling today they are just revealing the χαρα that is filling their hearts.