Stem with modifying proclitic composed of: txal= against, yaa walk/go
intransitive verb. enlarge; increase; grow; strengthen; expand
Ła txa̱lyaa baask. The wind is getting stronger.
Txa̱lyaa sg̱eetk. It's getting dark.
Txa̱lyaa sg̱a̱gyemk. It's getting warmer.