imbrunire significa in inglese

darken [darkened, darkening, darkens]▼(to make dark by reducing light)
verb
[UK: ˈdɑːkən] [US: ˈdɑːrkən]

gloaming▼(twilight)
noun
[UK: ˈɡləʊm.ɪŋ] [US: ˈɡloʊm.ɪŋ]