faubourg

[foh-boo r, -boo rg; French foh-boor] /ˈfoʊ bʊər, -bʊərg; French foʊˈbur/
noun, plural faubourgs
[foh-boo rz, -boo rgz; French foh-boor] /ˈfoʊ bʊərz, -bʊərgz; French foʊˈbur/ (Show IPA)
1.
a suburb or a quarter just outside a French city.
Origin
1425-75; late Middle English faubourgh < Middle French fau(x)bourg, alteration, by association with faux false, of Old French forsborc, equivalent to fors- outside of (< Latin forīs outside; cf. foreign) + borc city ≪ Germanic (see borough)
British Dictionary definitions for faubourg

faubourg

/ˈfəʊbʊəɡ; French fobur/
noun
1.
a suburb or quarter, esp of a French city
Word Origin
C15: from French fauxbourg, perhaps a modification through folk etymology of Old French forsborc, from Latin foris outside + Old French borcburg
Word Origin and History for faubourg
n.

"suburb," late 15c., from Middle French faux bourg, said by French authorities to be from Old French forsbourc (12c.) "suburbs, outskirts," literally "that which is outside the town," from fors "outside" (from Latin foris) + bourc "town," of Frankish origin (cognate with English borough), altered in Middle French by folk-etymology to faux bourg "false town" (suburbs were seen as inauthentic).