pron. and conj. Obs. [See SUM rel. adv. and conj.] = prec.

1

a. 1300.  Cursor M., 10205. Queþer-sum it war sco or he. Ibid., 10503. Quersum i haf, maiden or knaue.

2

1357.  [see WHETHERSO 1].

3