词根词缀：epi-, ep-

【来源及含义】Greek: above, over, on, upon; besides; in addition to; toward; among

【相关词根词缀】 Related "above, over, beyond the normal, excessive" word units: hyper-; super-, supra-, sur; ultra-, ult-.

【同源单词】anepigraphous, cotyledon, endoepidermal, ephemeral, epibasal, epibasidium

词根词缀：nycti-, nyct-, nycto-, nyc-

【来源及含义】Greek: night; a relationship to darkness, dark

【相关词根词缀】Other related "dark; shadow, shade; black" units: lygo-; melan-; nigri-; nocti-; scoto-; skio-; umbra-. Another related "night" unit: nocti-.

【同源单词】epinyctal, epinyctis, geonyctitropism, nychthemeron, nyctalopia, nyctamblyopia