adjectival noun / adverb / ~と adverb / ~する noun:

• sticky; syrupy; pulpy - onomatopoeia ➜ とろみ・とろっと

adverb / ~と adverb / ~の noun:

• weakly (of a flame); gently (e.g. boil); simmering - onomatopoeia

~と adverb / ~する noun:

• dozing off; napping - onomatopoeia

adverb / ~と adverb / ~する noun:

• sluggishly; dawdling - onomatopoeia

godan ~く verb / transitive:

• to cook (grains, e.g. rice)
• to boil; to simmer; to stew; to seethe - Kansai dialect ➜ 煮る

ichidan verb / intransitive verb:

• to break through (e.g. one's doubts); to become unbound by (e.g. the past); to allay (e.g. anger)
• to burst (e.g. a boil)