词根：acerb = bitter, harsh

  词根acerb来自拉丁语的acerb意为bitter,barsh。

同源词：

1. exacerbate vi.使痛苦、疾病等）恶化；激怒 （使非常痛苦或难受 ex(=intensive) + acerb(=bitter,harsh)）
  exacerbation 恶化；激怒
  Many study shows that stress and tension can exacerbate pain.很多研究表明压力和紧张会加剧疼痛。

2. acerbity n.尖酸；酸，苦，辣

词根词缀：acerb-, acerbo-; acri-, acrid-

【来源及含义】Latin: bitter, sharp, sour, stinging

【相关描述】Formed from a blend of Latin acer- (feminine acris, neuter acre) which are both related to Latin acus, "needle"; acies, "sharp edge, point, the front of an army, line of battle, battle array"; and acuere, "to sharpen".

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "sour, sharp": aceto-; acid-; acies- (not "sour"); acuto- (not "sour"); oxy-; pung- (not "sour").

【同源单词】acerbate, acerbic, acerbity, acerbophobia, acerophobia, acerose