Presume (verb)

1. To assume that something is true without proof or evidence.
2. To take for granted, or to take as a given.
3. To infer something from the available information, or to make an educated guess.

Origin:

From latin praesumere ("to take beforehand, anticipate"), from prae ("before") + sumere ("to tak.e")

Examples:

1. I presume you're here to see the boss.
2. He presumed her guilty until proven innocent.
3. I presume you're staying for dinner.
4. We can presume that the weather will be good tomorrow.
5. I would presume that he would be interested in the job.