Llychwr, n. what spreads along
Llychwyr, n. decline of light; twilight
Llychyn, n. particle of dust
Llyd, n. breadth, extent
Llydan, a. broad, wide, spacious
Llydandroed, a. broad-footed
Llydanddail, a. broad-leaved
Llydanedd, n. broadness, width
Llydaniad, n. a dilation
Llydanu, v. to expand, to dilate