siùcar m (genitive singular siùcair, plural siùcaran)
From Middle Irish siúcra, from Anglo-Norman sucre, from Old French çucre, chucre, from Medieval Latin zuccarum, from Arabic سُكَّر (sukkar), from Persian شکر (šakar), from Sanskrit शर्करा (śárkarā, “ground or candied sugar", originally "grit, gravel”), from Proto-Indo-European *ḱorkeh₂ (“gravel, boulder”).