lämmetä
Lämmetä is a Finnish verb meaning to become warm or to warm up in an intransitive sense. It describes a change in temperature that happens to the subject itself, rather than an action performed on another object. This distinguishes lämmetä from lämmittää, which is transitive and means “to heat (something).”
Etymology and form: lämmetä is built from the noun lämpö, meaning warmth, together with the -metä verb-forming
Usage and scope: the verb is used for natural temperature changes in air, water, soil, or the
Grammatical notes: like other Finnish verbs, lämmetä conjugates for person and tense within the standard Finnish
Related terms include lämmittää (to heat something), lämpö (warmth), and ilmasto (climate).