to ponder/mull over
verbinformal/mɐtuˈtaɾ/low
ma·tu·tar
Definition
To think deeply, reflect, or ponder over something, usually in a prolonged or insistent manner.
She spent the evening mulling over the job offer.
He likes to sit and ponder the mysteries of the universe.
Common collocations
to mull over an ideato ponder a planto think deeply about the matterto sit and mull
Etymology
Origem obscura, possivelmente relacionada com 'matuto'.