Aeron m & f WelshFrom the name of the Welsh river Aeron, itself probably derived from the hypothetical Celtic goddess
Agrona. Alternatively, the name could be taken from Welsh
aeron meaning
"berries".
Alwyn m WelshFrom the name of the River Alwen in northern Wales (a tributary of the River Dee).
Bleddyn m WelshFrom Welsh
blaidd "wolf" combined with a diminutive suffix. This was the name of an 11th-century king of Gwynedd and Powys.
Celyn m & f WelshMeans
"holly" in Welsh. It appears briefly in the Welsh tale
Culhwch and Olwen, belonging to a son of Caw, but was not typically used as a given name until the 20th century.
Gwydion m Welsh, Welsh MythologyProbably means
"born of trees" from Old Welsh
guid "trees" and the suffix
gen "born of". In the Fourth Branch of the
Mabinogi, Gwydion is the nephew of King
Math of Gwynedd, and like him a powerful magician. In an elaborate plot to give his brother a chance to rape his uncle's footbearer, he arranged a war between Gwynedd and the neighbouring kingdom of Dyfed. Gwydion himself killed King
Pryderi of Dyfed at the end of the war. In punishment for the rape, Math transformed Gwydion and his brother into different animals over the course of three years. Gwydion was the uncle of
Lleu Llaw Gyffes, whom he fostered. Math and Gwydion fashioned Lleu a wife,
Blodeuwedd, out of flowers and they later aided him after her betrayal. Gwydion also appears in older Welsh poetry such as the
Book of Taliesin.
Islwyn m WelshFrom the name of a mountain in Wales that means "below the forest" from Welsh
is "below" and
llwyn "forest, grove".
Ivor m Irish, Scottish, Welsh, English (British)From the Old Norse name
Ívarr, which was probably derived from the elements
ýr "yew tree, bow" and
herr "army, warrior". During the Middle Ages it was brought to Britain by Scandinavian settlers and invaders, and it was adopted in Ireland (Irish
Íomhar), Scotland (Scottish Gaelic
Iomhar) and Wales (Welsh
Ifor).
Mostyn m WelshFrom the name of a town in northern Wales, which is probably derived from Old English elements meaning
"moss town".