[adverb] [not gradable] - in the correct way or at the correct time; as expectedHe knew he had been wrong, and duly apologized.I know you wanted to help, and I'm duly grateful.She asked for his autograph and he duly obliged by signing her programme.Emma ordered a catalogue, and it duly arrived the following week.
DULY
Meaning of DULY in English
Cambridge English vocab. Кембриджский английский словарь. 2012