In this country [America] every man adopts some particular slang-whanger as the standard of his judgment, and reads everything he writes, if he reads nothing else: which is doubtless the reason why the people of this logocracy are so marvellously enlightened. [Irving, "Salmagundi," 1821]
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]
1580s, "stupid person, blockhead, dunce, numbskull," perhaps from dialectal logger "heavy block of wood" + head (n.). Later it meant a type of thick-headed iron tool (1680s), a type of cannon shot, a post in the stern of a whale-boat, and a type of turtle (1650s). Loggerheads "fighting, fisticuffs" is from 1670s, but the exact notion in the compound is uncertain, perhaps it suggests the heavy tool used as a weapon. The phrase at loggerheads "in disagreement" is first recorded 1670s.
[W]e three loggerheads be: a sentence frequently written under two heads, and the reader by repeating it makes himself the third. [Grose, "Dictionary of the Vulgar Tongue," 1785]