in English is:

worst

Mutations

Soft:waethaf
Nasal:ngwaethaf
Aspirate:(no mutation)
Phrases (9)
ar waethaf (rhywun neu rywbeth):ar fy (dy, ei, a.y.b.) ngwaethaf
arfer anarfer yw'r arfer gwaethaf
credu na wneir un arall yw'r olaf a'r gwaethaf gwall
er fy (dy, ei, a.y.b.) ngwaethaf2
er gwaethaf (rhywun neu rywbeth):er fy (dy, ei, a.y.b.) ngwaethaf1
er gwaethaf hynny
Er gwaethaf pawb a phopeth, ryn ni yma o hyd
gwell yr heddwch gwaethaf na'r rhyfel gorau
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