Dyddiad dall: "Y foment fwyaf lletchwith oedd pan fu bron iddo roi’r fwydlen ar dân.

Dyddiad dall: "Y foment fwyaf lletchwith oedd pan fu bron iddo roi’r fwydlen ar dân.
I notice you haven't provided the English text for me to translate into Welsh. Could you please share the text you'd like me to translate?