*Hwyl: "in Welsh the word often refers to a complex and intangible quality of passion and sense of belonging that isn’t easy to translate but which has been said to sum up Welshness in a word. The Geiriadur Prifysgol Cymru (the big dictionary of Welsh recently published by the University of Wales) lays out its ramifications like this:
'..temper, mood, frame of mind; nature, disposition; degree of success achieved in the execution of a particular task &c; fervour, ecstasy, unction, gusto, zest; characteristic musical intonation or sing-song cadence formerly much in vogue in the perorations of the Welsh pulpit.'
Its origins lie in a much older sense of the sail of a ship and hence elliptically one’s course — in life rather than on the sea. Most broadly, in Welsh hwyl refers to a person’s mood. By itself it can also mean “goodbye” as a common short form of hwyl fawr, roughly “all the best”."