To adopt a feigned quality or manner; to claim without right; to arrogate
To receive, adopt (a person)
To authenticate by means of belief; to surmise; to suppose to be true, especially without proof
To take on a position, duty or form
To adopt (an idea or cause)
To relinquish (a right etc.); to give up claim to; to forgo.
To relinquish claim on a payment or fee which would otherwise be due.