Akademik

lower middle class (shopkeepers and clerical staff etc.)

: a social class that is between the middle class and the lower class : the lower middle class

— called also the petty bourgeoisie

the peˌtite ˌbourgeoiˈsie (also ˌpetty ˌbourgeoiˈsie) noun singular

the lower middle class in society

See also: ↑petty bourgeoisie  

[petite bourgeoisie] French, literally little townsfolk.