foith Share definition Flag Catholic term for "growth in faith". Orignally a typo on a radio station. F- Faith, O-Growth, ITH- End of faith. "Jim has shown real foith over this year. He is becoming a very faith filled Catholic." foith by St. Francis of Assisi April 30, 2008 0 0 Get merch Get the foith mug. Buy Now — $32.95 See more merch