from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A unit of weight equal to one quarter of an uncia.
- n. A diacritic, resembling a 180°-rotated ‘C’ (i.e., being similar in appearance to ⟨ ᵓ ⟩), written atop a consonant to mark gemination, superseded in Classical Latin by doubling the letter representing the geminated consonant.
From the Latin sicilicus, the diminutive form of sicilis ("sickle"), so named because of its falciformity. (Wiktionary)