Improvement
来自Big Physics
late Middle English emprowement (in the sense ‘profitable management or use; profit’), from Anglo-Norman French, from emprower (see improve).
wiktionary
From Anglo-Norman emprouwement; synchronically improve + -ment.
etymonline
improvement (n.)
mid-15c., enprowment "profitable use, management of something for profit," from Anglo-French emprowement, from emprouwer "turn to profit" (see improve). Meaning "betterment; act of making better, amelioration" is from 1640s. Meaning "production of something better, something better (than something else)" is from 1712. Meaning "buildings, etc. on a piece of property" is from 1773. Related: Improvements.
