Nanno-/nano-
Latin; dwarf
Nar-/nas-
Latin; nose, nostril
Nav-
Latin; ship
Neo-
Greek; new
Nephelo-
French from Greek; cloud
Nephr-/nephro-
Late Latin from Greek; Kidney
-ness
Middle English; state, quality, or condition
Neur-
Greek; nerve
Niv-
Latin; snow
Noci-
Latin; hurt(ful)
Noct-
Latin; night
Non-
Latin; not
Null-/nulli-
Latin; none