Effectually and Mostly

adverb

• In an effectual manner.
  • usage: "Bismarck was constantly criticised by the more liberal newspapers, and he retaliated by passing an emergency decree that effectually muzzled the press"

• (adv.) With effect; efficaciously.
• (adv.) Actually; in effect.

adverb

• In large part; mainly or chiefly.
  • usage: "These accounts are largely inactive"
  • synonyms: largely, for the most part
• Usually; as a rule.
  • usage: "by and large it doesn't rain much here"
  • synonyms: by and large, generally, more often than not

(adv.) For the greatest part; for the most part; chiefly; in the main.