In French, the English Channel is called "La Manche", meaning this part of a shirt or coat
In "
Manche" the ending is masculine because in French the English Channel is ... to 
"La Manche" so that it is obviously the English Channel, but the name of the... [DOC] [TLE] L Srtchais - Socit Jersiaise - Member's Pages [PAR] Sercquais - Sark-French - Sark patois - Sarkese - Sercquiais ... a development of 
Jrriais even though Sark is part of the Bailiwick of Guernsey.