胶带
jiāo dài · HSK 5
adhesive tape
📼 胶带 = glue + belt/band = adhesive strip
胶 means glue or sticky substance; 带 means belt, band, or ribbon. Together they form sticky band, the literal sense of adhesive tape. The same word covers rubber belts and recording tape, all sticky or strip-like.
带 — belt/sash 巾 at bottom + ornaments above
带 originally pictured a belt or sash with hanging ornaments or pendants tied at the waist; the bottom 巾 (cloth) reinforces the textile meaning. From the literal 'belt' it extended to 'carry, bring along' (as a belt holds things) and to 'zone/region' (a strip of land).