ne-, neg- [L] = not 不

nescient a. 无知的；没有知识的 [sci = to know] 

neuter a. 中性的；中立的 [uter = either] 

negotiate v. 谈判，协商[oti = ease] 

neglect v. 忽视，忽略[lect = to pick up ]

necr(o)- [GK] = dead body 死尸；death 死

necropsy n. 尸体剖检，验尸 [opsy=a viewing] 

necropolis n. 墓地（尤指古代城市的大墓地）[polis = city] 

necrolatry n. 对死者的崇拜 [-latry= the worship of] 

necrology n. 死亡名单；讣告 [-logy = a writing of]

neo- [GK] = new 新 

neolithic a. 新石器时代的 [lith=stone] 

neologism n. 新词；旧词的新义[log = to speak] 

neoclassicism n. 新古典主义 

neo-impressionism n. 新印象主义

neur(o)- [GK] = nerve 神经 

neuralgia n. 神经痛 [-algia = pain] 

neurasthenia n. 神经衰弱 [asthenia=weakness] 

neurohormone n. 神经激素（hormone n .激素） 

neurophysiology n. 神经生理学

noct(i)- , nocto- [L] = night

noctambulation n. 梦行（症） [ambul = to walk] 

noctilucent a. 夜间发光的[luc= to shine] 

noctivagant a. 夜间徘徊的，夜游的[vag= to wander] 

noctograph n. 帮助盲人写字的框子 [-graph = a device for writing] 

noso- [GK] =disease 疾病

nosography n. 病情学 [~ graphy = the science of] 

nosology n. 疾病分类表 [-logy = a writing of] 

nosophobia n. [生理分析]疾病恐怖症 [-phobia = fear]

nucleo- [L] = kernel 核

nucleometer n. [原]核子计 [-meter = a measuring device] 

nucleoplasm n. [生]核质 [-plasm =sth. formed] 

nucleoprotein n. [生化]核蛋白(protein n .蛋白质）