I am actually more confused with many 言葉 that share the same Kanji but has completely different meaning due to their endings.
例えば:
止む 「やむ」 to cease
止す 「よす」 to cease, to abolish, to resign, to give up
止める 「やめる」 (vt) to end, to stop, to cease, to resign
止まる 「とまる」 to come to a halt
止める 「とめる」 to stop (something)
ax