In-ter-sec-tion, cynghroesiad
In-ti-ma-cy, cyfeillach, cydnabyddiaeth
In-tim-i-date, digaloni, peri ofn
In-tox-i-cate, meddwi, brwysgo
In-tran-si-tive, ansymmudol, didrosiad
In-tri-ca-cy, astrusi, dyryrswch
In-tro-duc-tion, rhagymmadrodd; rhaglith
In-val-id-ate, gwanhau, dirymu
In-ven-to-ry, dodrefnres
In-ves-ti-gate, olrhain, chwilio allan