The story
- Proto-Indo-European*ḱorkeh₂
- Proto-Indo-Iranian*ćárkaraH
- Proto-Indo-Aryan*śárkaraH
- Sanskritशर्क॑रा (śárkarā)
- Middle Persian𐭱𐭪𐭥 (šakar)
- Arabicسُكَّر (sukkar)
- Old Italianzucchero
- Old Frenchçucre
- Middle Englishsugre
- Englishsugar
- Proto-Germanic*kuttô
- Latincotta
- Old Frenchcotte
- Middle Englishcote
- Englishcoat
- English todaysugarcoat
From sugar + coat; figurative sense from the practice of coating medicinal tablets or pills with sugar in order to disguise their unpleasant taste (sugarcoating the pill).
Etymology from Wiktionary, CC BY-SA 4.0.