点
テン, つ.ける, つ.く, た.てる, さ.す, とぼ.す, とも.す, ぼち

spot, point, mark, speck, decimal point

JLPT3 G2 S9 F165

As per 占# (fixed in place) + 黑 black → black dots/marks fixed in place on a map → *dot*; *point* → *counter*.

[Full Kanji Etymology List]