philosophist n.

c. 1300, philosophie, "knowledge, learning, scholarship, scholarly works, body of knowledge," from Old French filosofie "philosophy, knowledge" (12c., Modern French philosophie) and directly from Latin philosophia, from Greek philosophia "love of knowledge, pursuit of wisdom; systematic investigation," from philo- "loving" (see philo-) + sophia "knowledge, wisdom," from sophis "wise, learned;" a word of unknown origin [Beekes]. With many spelling variants in Middle English (filozofie, phelosophie, etc.).

From mid-14c. as "the discipline of dealing in rational speculation or contemplation;" from late 14c. as "natural science," also "alchemy, occult knowledge;" in the Middle Ages the word was understood to embrace all speculative sciences. The meaning "system a person forms for conduct of life" is attested from 1771. The modern sense of "the body of highest truth, the science of the most fundamental matters" is from 1794.

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"]

In 1744 he made an unsuccessful attempt to obtain a professorship at Edinburgh; having failed in this, he became first a tutor to a lunatic and then secretary to a general. Fortified by these credentials, he ventured again into philosophy. [Bertrand Russell, writing of Hume, in "A History of Western Philosophy," 1945]

[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]

word-forming element meaning "one who does or makes," also used to indicate adherence to a certain doctrine or custom, from French -iste and directly from Latin -ista (source also of Spanish, Portuguese, Italian -ista), from Greek agent-noun ending -istes, which is from -is-, ending of the stem of verbs in -izein, + agential suffix -tes.

Variant -ister (as in chorister, barrister) is from Old French -istre, on false analogy of ministre. Variant -ista is from Spanish, popularized in American English 1970s by names of Latin-American revolutionary movements.

also philosoph, "Enlightenment rationalist and skeptic," especially in reference to any of the French Encyclopædists, often disparaging or with contemptuous implication (when used by believers), 1774, from French philosophe, literally "philosopher" (Old French filosofe; see philosopher). Usually italicized in English, but nativized by Peter Gay ("The Enlightenment," 1966) and others. Also compare philosophist. It also was the older word for "philosopher" in English, from Old English to c. 1400.