/ ˈɪndɪgəʊ; NAmE -goʊ/ adjective
very dark blue in colour :
an indigo sky
► in·digo noun [ U ]
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WORD ORIGIN
mid 16th cent.: from Portuguese índigo , via Latin from Greek indikon , from indikos Indian (dye), from India .
/ ˈɪndɪgəʊ; NAmE -goʊ/ adjective
very dark blue in colour :
an indigo sky
► in·digo noun [ U ]
••
WORD ORIGIN
mid 16th cent.: from Portuguese índigo , via Latin from Greek indikon , from indikos Indian (dye), from India .
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005