Ai 1fJapanese From Japanese 愛 (ai) meaning "love, affection", 藍 (ai) meaning "indigo", or other kanji with the same pronunciation.
Indigof & mEnglish (Modern) From the English word indigo for the purplish-blue dye or the colour. It is ultimately derived from Greek Ἰνδικόν (Indikon) meaning "Indic, from India".