What is the meaning of Beir?

bear, give birth to

lay

bear away, win

bring, take

proceed, advance

second-person singular future of bí

second-person singular imperative of beirid

third-person singular present conjunct of beirid

to give birth to

to carry, catch; catch up with; overtake; catch hold of [with air]

bear (large predatory mammal of the family Ursidae)

person who is physically impressive and/or crude

boar (male swine)

Source: wiktionary.org