What is the meaning of Estrar?

to prepare the animal's bed, to cover the floor of a stable with straw or ferns (estru) (for animals to sleep)

to spread on the ground

to pave a road

to pave; to orderly cover a surface

to orderly cover with litter the floor of the stall or a field

to litter a place

apocopic form of estrarre

indefinite plural of ester

Source: wiktionary.org