accidence

taivutusoppi puhekieltä The accidents or inflections of words; the rudiments of grammar.
1627, w:John Brinsley the Elder|John Brinsley, Ludus Literarius; or, The Grammar Schoole, London: John Bellamie, p. xiii,https://archive.org/details/ludusliterariuso00brinuoft

To teach Schollars how to bee able to reade well, and write true Orthography, in a short space. 2. To make them ready in all points of Accedence and Grammar, to answere any necessary question therein.

Our best schools send every year to college boys who know their accidence reasonably, and in some cases admirably well (..)

When Franklin, playing with his kite in a thunderstorm, brought down sparks from the heavens, he was learning the accidence of that science of Electricity which has given us the Telegraph and Telephone (..)

And forsomuch as this treateth of blazon of Armes, and of the worthie bearers of them (..) I therefore, have named this, the Accedence of Armorie (..)

Sir Hugh, my husband says my son profits nothing in the world at his book. I pray you, ask him some questions in his accidence.

Two years afterwards he got part of an accidence and grammar, and about three fourths of Littleton’s dictionary. He conceived a violent passion for reading (..)

Hugh Jones, a Fellow of William and Mary College, writes of his countrymen that, for the most part, they are only desirous of learning what is absolutely necessary, in the shortest way. To meet this peculiarity Mr. Jones states that he has designed a royal road to learning, consisting of a series of text-books embracing an Accidence to Christianity, an Accidence to the Mathematicks, and an Accidence to the English Tongue.