Obs. Forms: 3–5 costn-en (pa. t. costned(e), costen(en, cosn(en (pa. t. costenede, cosnede). [ME. costn-en appears to be a by-form (of earlier appearance) of cost-en, a. OF. cost-er to COST. The n of the stem appears also in Icel. kostnaðr, Sw. kostnad, Da. bekostning expense.] = COST v.

1

a. 1225.  Ancr. R., 290. His deorewurðe spuse, þet costnede him so deore. Ibid., 392. Ure luue touward him þet kostnede him so deorre.

2

1297.  R. Glouc. (1724), 390. He esste, wat hii costenede? þre ssyllyng, þe oþer seyde.

3

c. 1380.  Sir Ferumb., 1683. Þe werste … cosnede a þousant pounde.

4

1399.  Langl., Rich. Redeles, 20. Duble That the clothe costened.

5