Ystlwn, n. connection, a kind
Ystlwyd, a. of a hoary hue
Ystlwyn, n. a luxuriant grove
Yslyned, n. society; kindred
Ystlyniad, n. a forming society
Ystlyniol, a. being associated
Ystlynu, v. to associate
Ystlys, n. a side, a flank
Ystlysgam, a. being lop-sided
Ystlysol, a. lateral, sided