割る
わる · waru · JLPT N3 · verb-godan
to divide
🪓🍉 waru sounds like war: war breaks things apart and divides people
割る splits something into pieces: breaking an egg, cracking a plate, or dividing in maths (6を2で割る = 6 ÷ 2). The kanji 割 has the knife radical 刂 on its right, the same knife you see in 切る (to cut).
割 — 害 (harm, phonetic) + 刂 (knife radical)
A semantic-phonetic compound: the knife radical 刂 gives the meaning 'cut,' while 害 supplies the sound. The original sense was to cut or slice with a blade, which extended to 'divide' and 'allot a share.' Modern uses like 割爱 (give up something dear) preserve this idea of cutting away.