Available
来自Big Physics
Safin（讨论 | 贡献）2022年4月26日 (二) 22:52的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=available+etymology&newwindow=1&hl=en ref] late Middle English (in the senses ‘effectua…”的新页面）
late Middle English (in the senses ‘effectual, serviceable’ and ‘legally valid’): from avail + -able. The sense ‘at someone's disposal’ dates from the early 19th century.
wiktionary
avail + -able
etymonline
available (adj.)
mid-15c., "beneficial," also "valid, effective, capable of producing the desired effect," from avail + -able. Meaning "at one's disposal, capable of being made use of" is recorded from 1827. Related: Availably.
