f. Sharpness. I. referring to the sight:--Scearpnes acies, Wrt. Voc. ii. 2, 19. Sió scearpnes ðæs æpples acies pupillae, Past. 11, 4; Swt. 69, 3. Seó scearpnes mínra eágena nis nú mid mé lumen oculorum meorum non est mecum, Ps. Th. 37, 10. Heó (betony) gegódaþ ðæra eágena scearpnesse, Lchdm. i. 72, 16. Hí ðæs módes eágena scearpnesse náuht gebétaþ tó ðære sceáwunga ðære sóðan gesǽlþe, Bt. 34, 8; Fox 144, 32: Met. 21, 24. II. referring to the mind:--On his módes scearpnesse aciem mentis, Past. 16, 1; Swt. 99, 9. Wæs hé náwiht hefig . . . ne hé cnihtlíce gálnysse næs begangende . . . ac on his scearpnysse hé weóx, Guthl. 2; Gdwin. 12, 13-20. III. roughness of surface (V):--Ealle wóhnyssa beóþ gerihte and scearpnyssa gesméðode, Homl. Th. i. 360, 34. IV. acidity, pungency:--Sió scearpnes the acidity of the humours, Lchdm. ii. 28, 1. Ðæs ecedes afre scearpnes, 224, 22. Se líchama gefélþ ðæs sealtes scearpnesse, Wulfst. 35, 6. V. efficacy:--For ðære sealfe scearpnesse (to make the salve effectual) genim wífes meoluc, ii. 28, 7.