鯔背 is read as いなせ (inase) and means gallant.
いなせ
inase
せい
height
ねこぜ
bent back
うわぜい
stature
せ
back
めんじゅうふくはい
pretending to obey but secretly betraying (someone)
りはい
estrangement
めんこうふはい
flawless
ちゅうぜい
average height
がんこうしはい
reading between the lines
まるぜ
round back (book spine)
やませ
cold Pacific wind (in the Tōhoku region in summer)
やまのせ
ridge (of a mountain)