2、philosophy:  Greek phílos (a word of uncertain origin) meant ‘loving’. It has entered into an enormous range of English compounds, including philander  (adopted from a Greek word meaning ‘loving men’), philanthropy , philately, and philology , not to mention all the terms suffixed with -phil or -phile, such as Anglophile  and paedophile . Philosophy itself means etymologically ‘loving wisdom’. It comes via Old French filosofie and Latin philosophia from Greek philosophíā, whose second element was a derivative of sophós ‘wise’ (source of English sophisticate).=> sophisticate
4、c. 1300,"knowledge, body of knowledge,"from Old French filosofie"philosophy, knowledge"(12c., Modern French philosophie) and directly from Latin philosophia and from Greek philosophia"love of knowledge, pursuit of wisdom; systematic investigation,"from philo-"loving"(see philo-) + sophia"knowledge, wisdom,"from sophis"wise, learned;"of unknown origin.Nec quicquam aliud est philosophia, si interpretari velis, praeter studium sapientiae; sapientia autem est rerum divinarum et humanarum causarumque quibus eae res continentur scientia. [Cicero,"De Officiis"]
[Philosophical problems] are, of course, not empirical problems; but they are solved through an insight into the workings of our language, and that in such a way that these workings are recognized -- despite an urge to misunderstand them. The problems are solved, not through the contribution of new knowledge, rather through the arrangement of things long familiar. Philosophy is a struggle against the bewitchment (Verhexung) of our understanding by the resources of our language. [Ludwig Wittgenstein,"Philosophical Investigations,"1953] Meaning"system a person forms for conduct of life"is attested from 1771.