The kanji 黛 primarily represents the area around the eyes, specifically the eyebrows or the dark shadow or line above the eyes. It often refers to a woman's eyebrows, especially when they are beautifully shaped or darkened for cosmetic purposes. It can also imply a subtle, elegant darkness or shadow.

・On-yomi (音読み): たい (tai) ・Kun-yomi (訓読み): まゆずみ (mayuzumi)

⚫︎黛眉 (taimai) Translation: Eyebrows, especially beautiful eyebrows. ⚫︎黛色 (taishoku) Translation: A color resembling the color of eyebrows; often a dark grayish-blue. ⚫︎眉黛 (bitai) Translation: Eyebrows and the area around the eyes.

The kanji 黛 is a phono-semantic compound (形声文字, keisei moji). It combines two parts. The semantic component is 眉 (mayu), which means "eyebrow." The phonetic component is 代 (dai), which is used here to indicate the sound. The original meaning of 代 is "generation" or "replace," but in this case, its use is purely for the sound. Over time, the character evolved to specifically represent the eyebrows or the shadow around the eyes.