煮にこぼれる

に

こ

ぼ

れ

る

Meanings

1

ichidan verb, intransitive verb

Describes liquid in a pot boiling up and spilling over the edge. Intransitive; the subject is the liquid or the pot contents.

。

Be careful, because it will boil over quickly if you use high heat.

煮にこぼれるUsage100%
Common mixed kanji-kana spelling; the kana portion こぼれる is standard for 'spill/overflow'.
煮に零こぼれる
Kanji 零 is rare and may not be recognized by many readers; prefer 煮こぼれる.
煮に溢こぼれる
Kanji 溢 is uncommon for this word; mainly a dictionary form.

吹ふきこぼれる
Also means 'boil over', but emphasizes the bubbling and foaming action, while 煮こぼれる focuses on the liquid spilling during simmering or boiling.
こぼれる
General intransitive verb for 'spill' or 'overflow'; 煮こぼれる is specifically for boiling over in cooking.

Compound of 煮 (ni, 'boil, simmer') + こぼれる (koboreru, 'spill, overflow'). The exact historical derivation is straightforward.