krēslot

Etymology
From the same stem as the noun, made into a second-conjugation intransitive verb (ending -ot).

Verb

 * 1) to become, to be getting dark, to grow dusk

Usage notes
Latviešu etimoloģijas vārdnīca indicates as having level intonation. Pronunciation with broken intonation can be encountered despite the fact that this eliminates the possibility to differentiate it from (which LEV in fact indicates as having a level intonation as well although in practice it is most commonly pronounced with a broken tone.)