Snow, eira: bwrw eira, odi

Snug, cryno, clyd

Soak, mwydo

Soap, sebon: seboni

Soar, uch-hedeg

Soft, meddal; tyner

Soil, pridd, tir: diwyno

Sold, gwerthedig

Sole, unig; gwadn: gwadnu

Some, rhai; rhyw; peth