Thru
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 23:53的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/thru ref] Modern use originated in American English as a phonetic and simplified spellin…”的新页面）
wiktionary
Modern use originated in American English as a phonetic and simplified spelling of through around 1839. The spelling had previously been one of several used in Middle English. [1]
etymonline
thru (prep.)
by 1839, altered spelling of through; at first often in representations of dialect (Scottish, Yankee), by 1880s in standard use as a simplified spelling.
