___
___ 軽 [light]
is in  ___
is in  ___
On-reading: ケイ as in 軽食 keishoku ___
KEI karu(i) light 
kei = "light | minor" prefix  
[aj] 軽い karui light
軽さ karusa lightness  
軽食 keishoku light meal | snack