become

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For the verb: "to become"

Simple Past: became
Past Participle: become

Concise Oxford English Dictionary © 2008 Oxford University Press:
become/bɪˈkʌm/
verb (becomes, becoming; past became; past part. become)
  • 1 begin to be.

    ■ develop into.

    ■ (of a person) qualify or be accepted as.

    ■ (become of) (in questions) happen to.

  • 2 (of clothing) look well on.

    ■ be appropriate to (someone).

– origin OE becuman ‘come to a place, come to be or do something’ (see be-, come), of Gmc origin.
'become' also found in these Oxford entries:

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