Schol-ar, ysgolhaig, ysgolawr
Sci-ence, gwyddiant; trefniant; celfyddyd
Scis-sors, gwellifyn; myswrn
Scorch-ing, deifiad, crasboethiad
Scorn-ful, ysgornllyd, diystyrllyd
Scoun-drel, dyhiryn, adyn
Scour-ing, ysgwriad, arloesiad
Scram-ble, ciprys: ciprysu
Scrap-ing, crafion, creifion
Scrib-ble, coegysgrifen: brasysgrifenu