theorize

/ˈθɪraɪz/
verb
  1. To form or suggest an idea or explanation about how something works or why something happens.
    • She likes to theorize about what life might be like on other planets.
    • Historians theorize about the reasons for the fall of the Roman Empire.
    • Scientists theorize that the universe began with a big explosion.
Antonyms
What does "theorize" mean? | whatsthatwordmean | whatsthatwordmean