這個拼法底下其實是2個不同的字，意思沒有關係， 只是長得一樣。下面分開列出來。跳到 黏黏的、沾滿黏膠的 · （笑起來）露出牙齦的
gummy
adjective, noun核心畫面
One picture covers this half of the word: gum, the thick sticky stuff that seeps out of a tree and to whatever it touches. Anything with that quality is gummy — sap on your hands, glue left behind by a sticker, rice that has at the bottom of the pot. And when someone makes a sweet with the same soft, springy, slightly feel, the sweet takes the name too.
這半邊的 gummy 可以想成樹上流出來的那種黏稠樹膠：稠稠的、碰到什麼就黏上什麼。有這種性質的東西都叫 gummy…更多收起
這半邊的 gummy 可以想成樹上流出來的那種黏稠樹膠：稠稠的、碰到什麼就黏上什麼。有這種性質的東西都叫 gummy——手上沾到的松脂、貼紙撕掉後留下的膠、鍋底變稠的飯。後來有人做出一種軟軟的、有彈性、帶點黏感的糖，這種糖也就沿用了同一個字。From the word’s history
From gum (the substance) + -y; the noun's spelling was also pushed by German gummi.
來自 gum（那種黏稠的膠質）加上 -y。名詞的拼法還受到德文 gummi 的影響，所以 gummi 和 gummy 兩種寫法都看得到。
Wiktionary etymology 2 text supplied in this packet (kaikki:3f6f69a190036ae4:976319160)
A second word, same spelling
gummy
adjective核心畫面
This half of the word has nothing to do with stickiness. Here gum means the pink flesh that holds the teeth, and the picture is a mouth opening into a smile where the gums are what you see. A baby has no teeth yet; an older person may have lost theirs; some people simply show a lot of gum when they smile. The word points at what is showing, not at how anything feels.
這半邊的 gummy 跟黏不黏一點關係也沒有。這裡的 gum 指牙齒周圍那圈粉紅色的肉，也就是牙齦。畫面可以想成一張…更多收起
這半邊的 gummy 跟黏不黏一點關係也沒有。這裡的 gum 指牙齒周圍那圈粉紅色的肉，也就是牙齦。畫面可以想成一張笑開的嘴，而你最先看到的是牙齦。嬰兒還沒長牙。長輩可能牙齒掉了。也有人天生笑起來就露出很多牙齦。這個字指的是「露出來的是什麼」，不是摸起來的感覺。From the word’s history
From gum (the flesh around the teeth) + -y. Wiktionary keeps this as a separate etymology from the sticky gum, so the two adjectives only look alike.
來自 gum（牙齦）加上 -y。來源辭典把它跟「黏膠」那個 gum 分成兩條不同的字源，所以這兩個 gummy 只是長得一樣、唸得一樣，意思上並不相通。
Wiktionary etymology 1 text supplied in this packet (kaikki:3f6f69a190036ae4:976309371)