R[obert] C[awdrey], "To the Reader," A Table Alphabeticall, conteyning and teaching the true writing, and vnderstanding of hard vsuall English wordes...
(London: Printed by I.R. for Edmund Weauer, 1604):
Svch as by their place and calling, (but especially Preachers) as haue occasion to speak publiquely before the ignorant people, are to bee admonished, that they neuer affect any strange ynckhorne termes, but labour to speake so as is commonly receiued, and so as the most ignorant may well vnderstand them: neyther seeking to be ouer fine or curious, nor yet liuing ouer carelesse, vsing their speech, as most men doe, & ordering their wits, as the fewest haue done. Some men seek so far for outlandish English, that they forget altogether their mothers language, so that if some of their mothers were aliue, they were not able to tell, or vnderstand what they say, and yet these fine English Clearks, will say they speak in their mother tongue; but one might well charge them, for counterfeyting the Kings English.
Also, some far iournied gentlemen, at their returne home, like as they loue to go in forraine apparrell, so they will pouder their talke with ouer-sea language. He that commeth lately out of France, will talk French English, and neuer blush at the matter. Another chops in with English Italianated, and applyeth the Italian phrase to our English speaking, the which is, as if an Orator, that professeth to vtter his minde in plaine Latine, would needs speake Poetrie, & far fetched colours of strange antiquitie. Doth any wise man think, that wit resteth in strange words, or els standeth it not in wholsome matter, and apt declaring of a mans mind? Do we not speak, because we would haue other to vnderstand vs? or is not the tongue giuen for this end, that one might know what another meaneth?
Hat tip: Eric Thomson.