reckon up

verb3

1. •
   To add up; count up; compute the amount of; tally; come to an accounting of.
2. •
   (informal) To perceive (reckon) (someone or something).

   • I reckoned him up as a troublemaker at first glance.
3. •
   (informal) To harshly criticize.

   • We reckoned him up pretty bad.