NIGHTY-NIGHT
Meaning of NIGHTY-NIGHT in English
/nuy"tee nuyt"/ , interj. Informal.
See good night .
[ 1875-80; redupl. of ( good ) night; see -Y 2 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012