Two for One

Otherwise known as Monday's brain bender....

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Find the word that fits the definitions below when it's 1) a whole word and 2) divided into two words.

1) Whole word: act decorously

2) Two words:

a. exist
b. be in possession of

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There's no school so I have a house full of kids. (Okay, so only four. But two are boys so it seems like a lot more than normal!) Anyway, I will be happy to even have a brain by days end.... As always, answers to follow in the comments.

Update: Today's Smarty McSmarty is Tige from Blue Tige! Whoohoo!