> as lemmas
back-jamb
back-jamb n.
Brit. 
/ˈbakdʒam/
, /ˈbakdʒam/U.S. /ˈbækˌdʒæm/
a wing of a house projecting behind./ˈbækˌdʒæm/ΘΚΠ
society > inhabiting and dwelling > inhabited place > a building > parts of building > [noun] > projecting subdivision > at rear
back-jamb1833
tunnel-back1957
1833 M. Scott Tom Cringle's Log xxiii, in Blackwood's Edinb. Mag. Aug. 154/2 A very handsome dining-room, situated in what I believe is called a back jamb, a sort of outrigger to the house.
<
as lemmas