Dropping
来自Big Physics
Safin(讨论 | 贡献)2022年4月28日 (四) 11:09的版本 (建立内容为“Category:etymology == etymonline == [https://www.etymonline.com/word/dropping ref] dropping (n.) late 14c., "that which is dropped," verbal noun from drop…”的新页面)
etymonline
dropping (n.)
late 14c., "that which is dropped," verbal noun from drop (v.). Specifically "dung" (especially of fowls) from 1590s. Related: Droppings.