What is the meaning of Caler?

to be necessary

alternative form of caldre

to cover the head

to give a haircut; to do the hair of

to do one's own hair

to care about; to be concerned about

to wedge (open) (a door)

to jam (machinery etc.), to stall (an engine)

to stall (of driver, engine)

to fill (someone) up

(of person eating) to be full

to synchronize

to chug (an alcoholic beverage)

to be bald or balding, to go or be going bald

to glow

first-person singular present passive subjunctive of calō

to be necessary

Source: wiktionary.org