Welsh hy-

← Proto-Celtic *su- (inherited)

← Ancient Greek εὐ- (cognate)

← Proto-Indo-European *h₁su- (inherited)

← Cornish he- (cognate)

→ Welsh hyblyg (affix)

→ Welsh hyfryd (affix)

→ Welsh hylif (prefix)

→ Welsh hyglyw (affix)

→ Welsh hyfforddi (prefix)

→ Welsh hyfed (affix)

→ Welsh hygwymp (affix)

→ Welsh hygyrch (prefix)

→ Welsh hyrwyddo (prefix)

→ Welsh hyfyw (prefix)

→ Welsh hyglwyf (prefix)

→ Welsh hyhollt (prefix)

→ Irish so- (cognate)