劣 (Kanji for inferiority)

Onyomi

RETSU

LET'S get an inferiority complex! It's fun!

The inferior dude - he only has a little strength.

( ガ or に ) おと*る

be inferior to
★☆☆☆☆

劣化(れっか)	to degrade or deteriorate ★☆☆☆☆ 劣 (inferiority) + 化 (transform) = 劣化 (to degrade or deteriorate)
劣等感(れっとうかん)	inferiority complex ☆☆☆☆☆ NP 劣 (inferiority) + 等 (equal /etc./plural) + 感 (feeling) = 劣等感 (inferiority complex)