philo-youdaoicibaDictYouDict[philo- 词源字典]
before vowels phil-, word-forming element meaning "loving, fond of, tending to," from Greek philo-, comb. form of philos "dear" (adj.), "friend" (n.), from philein "to love," of unknown origin. Productive of a great many compounds in ancient Greek.[philo- etymology, philo- origin, 英语词源]