English nocturnal

← Old English niht (cognate)

← English night (cognate)

← Middle French nocturnal (borrowed)

← Ancient Greek νύξ (cognate)

← Proto-Indo-European *nókʷts (inherited)

← Latin nocturnus (derived)

← Latin nox (derived)

← Sanskrit नक्ति (cognate)

← Proto-Slavic *noťь (cognate)

→ English nocturnally (suffix)

→ English nocturnality (suffix)

→ English nonnocturnal (prefix)

→ English nocturnalist (suffix)

→ English nocturnalism (suffix)

→ English noctophobia (affix)

→ German nüchtern (cognate)

→ Ido noktar (derived)