The terminations en, ed, and ig (our modern y,) signifying give, add, join, denote that the names of qualities to which they are postfixed, are to be attributed to other nouns possessing such qualities:  wood-en, wood-y.  See page 37.

Left is the past participle of the verb leave.  Horne Tooke defines right to be that which is ordered or directed.  The right hand is that which your parents and custom direct you to use in preference to the other.  And when you employ that in preference, the other is the leaved, leav’d, or left hand; i.e. the one leaved or left.  “The one shall be taken, and the other (leaved) left.”

    Own.  Formerly a man’s own was what he worked for, own being a
    past participle of a verb signifying to work.

Restrictive.  Some restrictives, in modern times, are applied only to singular nouns; such as a or an, another, one, this, that, each, every, either.  Others, only to plural nouns; as, these, those, two, three, few, several, all.  But most restrictives, like adjectives, are applied to both singular and plural nouns:  first, second, last, the, former, latter, any, such, same, some, which, what.

Numerals.  All numeration was, doubtless, originally performed by the fingers; for the number of the fingers is still the utmost extent of its signification. Ten is the past participle of tynan, to close, to shut in.  The hands tyned, tened, closed, or shut in, signified ten; for there numeration closed.  To denote a number greater than ten, we must begin again, ten and one, ten and two, &c.

Twain, twa-in, twa-ain, twa-ane, is a compound of two (twa, twae, twee, twi, two or dwo or duo) and one (ane, ain, an.) It signifies two units joined, united, aned, or oned.  Twenty (twa-ane-ten) signifies two tens aned, oned, or united.  Things separated into parcels of twenty each, are called scores.  Score is the past participle of shear, to separate.

    The Ordinals are formed like abstract nouns in eth.  Fifth,
    sixth, or tenth is the number which fiv-eth, six-eth, ten-eth,
    or mak-eth up the number five, six, or ten.

Philosophical writers who limit our acceptation of words to that in which they were originally employed, and suppose that all the complicated, yet often definable, associations which the gradual progress of language and intellect has connected with words, are to be reduced to the standard of our forefathers; appear not to have sufficiently attended to the changes