词根：-ac-, -acu-, -acr-, -acer-, -acet-

【词根含义】：尖,酸

【词根来源】：-ac-来源于拉丁语动词aceo, acere, -, -(尖,酸); -acu-来源于拉丁语动词acu.o, acu.ere, acu.i, acut.us(使尖锐); -acr-和-acer-来源于希腊语形容词akros(最高的,末端的)和拉丁语形容词acer, acris(尖利的,辛辣的); -acet-来源于拉丁语名词acetum, aceti, n(醋)。均可追溯至原始印欧语ak-(尖,锋利)。

【同源单词】：acid, aciform, acme, acupuncture, acute

词根：-form-

【词根含义】：形

【词根来源】：来源于拉丁语动词formo, formare, formavi, formatus(形)。

【同源单词】：aciform, conform, conformity, cordiform, corniform

词根词缀：acies-, aci-, acicul-

【来源及含义】Latin: a sharp edge or point; mental acuity, sharpness of vision

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

【同源单词】acicula, acicular, acicular ice, acicularity, acicularly, aciculate

词根词缀：form-, -form, forma-, format-

【来源及含义】Latin: shape, structure, figure, outer appearance, composition, to compose; visual appearance; spacial arrangement; to develop or to acquire; to produce

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "form, shape, appearance": eido-; figur-; icono-; ideo-; imag-; morpho-; -oid; typo-.

【同源单词】acariform, Acariformes, Accipitriformes, aciculiform, aciform, acinaciform