To argue skillfully, using complex logic or clever reasoning.
To make an argument which is illogical, especially one which is overly complex or which improperly uses fine or clever distinctions; to equivocate.
Characterized by equivocation or by overly complex or specious argumentation; improperly reasoned.
Chopped logic: reasoning which is improper; sophistry.
To imagine or suspect; to conjecture; to posit with contestable premises.
Thought, imagination, or conjecture, which may be based upon feeble or scanty evidence; suspicion; guess.
Reflection; thought; posit.