Emyr is a variant of the name Ynyr and it means 'emperor' or 'king' in Welsh.
Emersyn is a variant spelling of Emerson. Emerson is the transferred use of an English surname meaning, quite literally, “son of Emeryâ€. The name Emery came to England by way of the Norman French and has roots in the Germanic language – from the ancient Germanic personal name “Amalricâ€.