as·per·i·ty 
(ă-spĕrĭ-tē)
(ă-spĕrĭ-tē)n. pl. as·per·i·ties
1.
a. Roughness or harshness, as of surface, sound, or climate: the asperity of northern winters.
b. Severity; rigor.
2. A slight projection from a surface; a point or bump.
3. Harshness of manner; ill temper or irritability.
[Middle English asperite, from Old French asprete, from Latin asperitās, from asper, rough.]
- Indo-European root: del-
- Indo-European root: dem-
- Indo-European root: demə-
- Indo-European root: dent-
- Indo-European root: der-
- Indo-European root: derk-
- Indo-European root: deru-
- Indo-European root: deu-
- Indo-European root: deu-
- Indo-European root: deuk-
- Indo-European root: deuə-
- Indo-European root: dhegwh-
- Indo-European root: dheigh-
- Indo-European root: dher-
- Indo-European root: dhers-
- Indo-European root: dheu-
- Indo-European root: dheu-
- Indo-European root: dheub-
- Indo-European root: dheugh-
- Indo-European root: dheuə-
- Indo-European root: dhghem-
- Indo-European root: dhgh(y)es-
- Indo-European root: dhreg-
- Indo-European root: dhreibh-
- Indo-European root: dhreu-