verb (used without object), the·o·rized, the·o·riz·ing.
verb (used with object), the·o·rized, the·o·riz·ing.
Related formsthe·o·ri·za·tion, nounthe·o·riz·er, nouno·ver·the·o·ri·za·tion, nouno·ver·the·o·rize, verb (used without object), o·ver·the·o·rized, o·ver·the·o·riz·ing.
Examples from the Web for theorise
But personally I have never found it among those who make religion as distinguished from those who theorise upon it.The Hearts of Men|H. Fielding
My desire for the moment, however, is not to theorise, but to let facts speak in reply to accusation.Fragments of science, V. 1-2|John Tyndall
The sociologist may theorise, but plain people will remember that men do not gather grapes from thorns, nor figs from thistles.James Watt|Andrew Carnegie
Of course I can theorise it now perfectly, and practise it at periods.The Hive|Will Levington Comfort
The day when Wagner began, not to theorise, but to publish his theorisings, was an unlucky one for him.Richard Wagner|John F. Runciman