Bottomless
来自Big Physics
Safin(讨论 | 贡献)2022年4月27日 (三) 21:57的版本 (建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/bottomless ref] From [https://en.wikipedia.org/wiki/Middle_English Middle English] boteml…”的新页面)
wiktionary
From Middle English botemles, botmeles, equivalent to bottom + -less.
etymonline
bottomless (adj.)
early 14c., "without a bottom," from bottom + -less. From 1560s as "baseless, unsubstantial."