The phrase "haddest all oneself" means to possess or have complete control over something. Synonyms for this phrase can include "owned," "dominated," "governed," "commanded," and "ruled." These words all suggest a strong and powerful presence, indicating that someone has complete authority over a particular situation or thing. Other potential synonyms might include "reigned," "held sway over," "exerted influence on," or "had mastery of." No matter what word is chosen, the meaning remains the same: a person who has "haddest all oneself" is someone who is completely in charge and able to direct the situation as they see fit.