Approximately
来自Big Physics
late Middle English (in the adjectival sense ‘close, similar’): from late Latin approximatus, past participle of approximare, from ad- ‘to’ + proximus ‘very near’. The verb (originally meaning ‘bring close’) arose in the mid 17th century; the current adjectival sense dates from the early 19th century.
wiktionary
approximate + -ly
etymonline
approximately (adv.)
1742, from approximate (adj.) + -ly (2).
