Alcibiades' lisp? (from Johnson at the Economist). Thence too, the suffixes -ikos and -ismos (the book rather than the example specifically).
Trivia about the lengths of Greek words inter alia. Please remember that the longest word in English is smiles, because there's a mile in the middle.
Latin and Greek vocab lists from a much respected former teacher.
Carl Sesar's Catullus 53 (on pp. 658-659) and 58 (at p. 11).