In·di·an ink
noun/ˌɪndiən ˈɪŋk/
/ˌɪndiən ˈɪŋk/
(North American English also India ink)
[uncountable]- a very black ink used in drawing and technical drawing
墨；墨汁 Word Originmid 17th cent.: originally applied to Chinese and Japanese pigments prepared in solid blocks and imported to Europe via India.