These possessive pronouns, meus, tuus, suus, noster, and vester, take after them these genitive cases,—ipsius, of himself, solius, of him alone, unius, of one, duorum, of two, trium, of three, &c., omnium, of all, plurium, of more, paucorum, of few, cujusque, of every one, and also the genitive cases of participles, which are referred to the primitive word understood; as

Meis unius impensis pocula sex exhausi:

I drank six pots to my own cheek.

We wonder that any one should have the face to say so.

Sui and suus are reciprocal pronouns, that is, they have always relation to that which went before, and was most to be noted in the sentence, as—

Jonathanus nimium admiratur se:

Jonathan admires himself too much.

Parcit erroribus suis, He spares his own errors.

Magnoperè Jonathanus rogat ne se derideas, Jonathan earnestly begs that you would not laugh at him.