一層

いっそう

• Adjective / Adverb

  adverb, no-adjective
  1. much more; still more; all the more; more than ever.

     kana-only

• Adjective / Noun

  common noun, no-adjective
  1. single layer (or storey, etc.).

• Adverb

  adverb
  1. rather; sooner; preferably.

     archaism

     See also いっそ .