In-va-lid, methfilwr, un methedig; gwan, dirym

In-va-sion, rhuthrgyrch, ymosodiad

In-va-sive, traisruthrol, rhuthrol

In-vei-gle, twyllo, llithio, hudo

In-ven-tion, dyfais, darfeddyliad

In-vest-ment, gwisgad; urddiad; gwarchead

In-un-date, llifeirio a dwfr, gorlifo

Ir-ri-gate, dyfrhau; dyfru

Ir-ri-tate, ystuno, herio, cynhyrfu

It-er-ate, ailddywedyd