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

词根词缀：pelago-, pelag-

【来源及含义】Greek [pelagos] > Latin [pelagicus]: sea, pertaining to the sea or ocean

【相关描述】Sea depths are estimates and the number of feet versus meters is calculated at 3.28 feet per meter.

【相关词根词缀】Inter-related cross references, directly or indirectly, involving the "sea" and the "ocean" bodies of water: abysso- (bottomless); Atlantic; batho-, bathy- (depth); bentho- (deep, depth); halio-, halo- (salt or "the sea"); mare, mari- (sea); necto-, nekto- (swimming); oceano-; plankto- (drifting); thalasso- (sea, ocean).

【同源单词】abyssopelagic, allopelagic, Archipel Indo-Australien, archipelago, autopelagic, bathypelagic