類
ルイ, たぐ.い
sort, kind, variety, class, genus
JLPT3 G4 S18 F678
犬 dog/beast (→ animals in general) + an element# combining 米 rice (→ plants in general) and 頁 (people) → sort a variety of things according to type, creating smaller piles → *variety*; *kind* → *broadly*.
[Full Kanji Etymology List]