The word was used in English in Greek form (analogon) in 1810. Meaning "word corresponding with another" is from 1837. Computing sense, in reference to operating with numbers represented by some measurable quantity (as a slide-rule does; opposed to digital) is recorded from 1946.
mid-14c., logike, "branch of philosophy that treats of forms of thinking; the science of distinction of true from false reasoning," from Old French logique (13c.), from Latin (ars) logica "logic," from Greek (he) logike (techne) "(the) reasoning (art)," from fem. of logikos "pertaining to speaking or reasoning" (also "of or pertaining to speech"), from logos "reason, idea, word" (see Logos). Formerly also logick. Sometimes formerly plural, as in ethics, but this is not usual. Meaning "logical argumentation" is from c. 1600. Contemptuous logic-chopper "sophist, person who uses subtle distinctions in argument" is from 1846.
a quality in poetic writing that charges words with meaning based on context and prior usage, a term introduced, along with phanopoeia (visual image) and melopoeia (sound), by Ezra Pound from Greek logopoeia, from logos "word" (see Logos) + poiein "to make, create" (see poet).
[T]he good writer chooses his words for their 'meaning,' but that meaning is not a set, cut-off thing like the move of knight or pawn on a chess-board. It comes up with roots, with associations, with how and where the word is familiarly used, or where it has been used brilliantly or memorably.
You can hardly say 'incarnadine' without one or more of your auditors thinking of a particular line of verse. [Pound, "ABC of Reading," 1934]
In classical Greek, "a well-reasoned reply; a 'thought-out response' to the accusations made," as that of Socrates. The original English sense of "self-justification" yielded a meaning "frank expression of regret for wrong done," first recorded 1590s, but this was not the main sense until 18c. Johnson's dictionary defines it as "Defence; excuse," and adds, "Apology generally signifies rather excuse than vindication, and tends rather to extenuate the fault, than prove innocence," which might indicate the path of the sense shift. The old sense has tended to shift to the Latin form apologia (1784), known from early Christian writings in defense of the faith.
late 14c., philologie, "love of learning and literature; personification of linguistic and literary knowledge," from Latin philologia "love of learning, love of letters, love of study, literary culture," from Greek philologia "love of discussion, learning, and literature; studiousness," in later use "learning" in a wider sense, from philo- "loving" (see philo-) + logos "word, speech" (see Logos).
Compare the sense evolution of Greek philologos, "fond of words, talkative," in Plato "fond of dialectic or argument," in Aristotle and Plutarch "fond of learning and literature," in Plotinus and Proclus "studious of words."
The meaning "science of language" is attested by 1716 (philologue "linguist" is from 1590s; philologer "linguistic scholar" is from 1650s); this confusing secondary sense has not been popular in the U.S., where linguistics is preferred. Related: Philological; philologic.
Philology reigned as king of the sciences, the pride of the first great modern universities—those that grew up in Germany in the eighteenth and earlier nineteenth centuries. Philology inspired the most advanced humanistic studies in the United States and the United Kingdom in the decades before 1850 and sent its generative currents through the intellectual life of Europe and America. It meant far more than the study of old texts. Philology referred to allstudies of language, of specific languages, and (to be sure) of texts. Its explorations ranged from the religion of ancient Israel through the lays of medieval troubadours to the tongues of American Indians—and to rampant theorizing about the origin of language itself. [James Turner, "Philology," 2014]
Proto-Indo-European root meaning "to collect, gather," with derivatives meaning "to speak" on the notion of "to gather words, to pick out words."
It forms all or part of: alexia; analects; analogous; analogue; analogy; anthology; apologetic; apologue; apology; catalogue; coil; colleague; collect; college; collegial; Decalogue; delegate; dialect; dialogue; diligence; doxology; dyslexia; eclectic; eclogue; elect; election; epilogue; hapax legomenon; homologous; horology; ideologue; idiolect; intelligence; lectern; lectio difficilior; lection; lector; lecture; leech (n.2) "physician;" legacy; legal; legate; legend; legible; legion; legislator; legitimate; lesson; lexicon; ligneous; ligni-; logarithm; logic; logistic; logo-; logogriph; logopoeia; Logos; -logue; -logy; loyal; monologue; neglect; neologism; philology; privilege; prolegomenon; prologue; relegate; sacrilege; select; syllogism; tautology; trilogy.
It is the hypothetical source of/evidence for its existence is provided by: Greek legein "to say, tell, speak, declare; to count," originally, in Homer, "to pick out, select, collect, enumerate;" lexis "speech, diction;" logos "word, speech, thought, account;" Latin legere "to gather, choose, pluck; read," lignum "wood, firewood," literally "that which is gathered," legare "to depute, commission, charge," lex "law" (perhaps "collection of rules"); Albanian mb-ledh "to collect, harvest;" Gothic lisan "to collect, harvest," Lithuanian lesti "to pick, eat picking;" Hittite less-zi "to pick, gather."
"hymn or psalm of praise to God," 1640s, from Medieval Latin doxologia, from Ecclesiastical Greek doxologia "praise, glory," from doxologos "praising, glorifying," from doxa "glory, praise" (from dokein "to seem good," from PIE root *dek- "to take, accept") + logos "a speaking" (see -logy). Related: Doxologize; doxological.