Facade feature

• A French letter might have one
• Diacritical mark under a 'c'
• Letter attachment?
• Cousin of the tilde and umlaut
• Janet's fiancé in "The Rocky Horror Picture Show"
• Pronunciation aid
• Mark suggesting a 'c' should be pronounced an 's'
• Janet's fiancГ© in "The Rocky Horror Picture Show"

Wiktionary Word definitions in Wiktionary
n. (context orthography English) In the spelling of Catalan, French, Portuguese and some other languages, a mark sometimes placed under the letter (term: c) to indicate that it is pronounced /s/ rather than /k/, as in French ''menaçant'' and Portuguese ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
c.1600, from Spanish cedilla , zedilla , literally "little z," from a Latin-like diminutive of Greek zeta "the letter 'z'." The mark (formerly also used in Spanish) was derived from that letter and indicates a "soft" sound in letters in positions where ...