digit (n.)
IPA: PHONETIC RESPELLING:
在14世纪末时表示“10以下的数字”，来自拉丁语 digitus “手指或脚趾”（也有第二种意思是与计算和数字相关的），被认为与单词 dicere“说”（源自 PIE 词根 *deik- “显示，展示”，也意为“严肃地宣判”）。它产生表示数字意思的原因是因为少于10的数字是用手指来数的。“手指或脚趾”的意思是从1640年代产生的。
late 14c., "numeral below 10," from Latin digitus "finger or toe" (also with secondary meanings relating to counting and numerals), considered to be related to dicere "to say, speak" (from PIE root *deik- "to show," also "pronounce solemnly"). The numerical sense is because numerals under 10 were counted on fingers. The "finger or toe" sense in English is attested from 1640s.