マツ, バツ, すえ
end, close, tip, powder, posterity
JLPT3 G4 S5 F456
A depiction of a tree with a diminutive, curved, and minutely visible branch obscured on top → *treetop*; *small*; *trifling*; *end*; *youngest child* (← extremity of a tree) → *period of decadence* (← decadent values marking the end of an age); (in) *the future* (← extremity of time). Originally the same character as 未.
[Full Kanji Etymology List]