Bhima was famous for his prodigious appetite: he regularly used to eat as much as the rest of his family combined.
prodigium (sign, omen, portent, prodigy) (Latin)
exceptionable, preeminent, prodigious
banal, lackluster, nondescript, prosaic, trifling, trite
prod refers to production and gious sounds as genious so someone genious in production we say him as marvelous, great. The root PRO- means 'in favor of'. The root DIGI- (e. g. , digit) refers to numbers or quantity. So, PRODIGIOUS refers to a favorable (or great) number. pro+Dj=> professional DJ is extra ordinary