This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Alternative spelling of theorize.

v. to believe especially on uncertain or tentative grounds

"However the nature of such relationships involves too many variables to neatly "theorise" in a tweet."

expect    anticipate   

explicate    retrace    formulate    reconstruct    construct