(gwin-), lenited ’wain, pl. gwîn. Isolated from the month-name Narwain, ”new sun” (where #gwain appears in lenited form). The form gwîn ”young” listed in VT46:22 would have to be taken as a pl. form, if it is to be the cognate of Quenya vinya.
Sindarin
narwain
noun. the month of January
narwain
noun. January, *(lit.) New Fire
narwain
january
narwain
january
gwain
new
lothron
noun. the month of May
ranoth
noun. month
Narwain