S / sigla
noun

sigla

gen. siglōrum · gender neuter · decl. 2nd
contr. from sigilla
signs of abbreviation; abbreviations
signs of abbreviation, abbreviations (late Lat.): sigla in libris ponere, Just. Ep. ad Antecess. § 8: leges per siglorum obscuritates conscribere, Cod. Just. 1, 17, 2, § 22.