Il-lit-er-ate, diddysg, anllythrenog
Il-lus-tra-tion, eglurhâd, deongliad
Il-lus-tri-ous, enwog, ardderchog
Im-mac-u-late, difrycheulyd, dihalog
Im-i-ta-tion, arddulliad, tebygiad
Im-me-di-ate, digyfrwng, diattreg
Im-mens-i-ty, anfeidroldeb
Im-mod-er-ate, anghymmedrol; afresymol
Im-mov-a-ble, diysgog, ansymmudol
Im-mu-ta-ble, anghyfnewidiol, sicr