### digit

• n. 数字；手指或足趾；一指宽
CET6+ TEM4 IELTS GRE

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1. dig + it => digit => 挖它 => 用爪子挖它.
2. 因为咱们的先人、古人在计数、数数时最初都是用手指来计数、数数的。
3. Digit：第几头。远古人使用数字是为了知道自己的牲畜有几头，不会算了只能用指头数----手指，足趾，数字，数码。
digit 数字，手指

digit
digit: [15] Digit was borrowed from Latin digitus. This meant ‘finger or toe’, but its underlying etymological sense is probably ‘pointer’; it appears to come from an Indo-European base *deik-, which also produced Latin dicere ‘say’ (originally ‘point out’), Greek deiknúnai ‘show’, Sanskrit diç- ‘show’, and possibly English toe.

The word was used in classical times for a measure of length, a ‘finger’s breadth’, but the mathematical sense ‘any of the numbers from 0 to 9’ (originally as counted on the fingers) is a later development. Digitalis [17], the scientific name of the ‘foxglove’, is a modern Latin use of the Latin adjective digitālis ‘of the finger’, perhaps in allusion to the foxglove’s German name fingerhut ‘thimble’, literally ‘finger-hat’.

=> toe
digit (n.)
late 14c., "numeral below 10," from Latin digitus "finger or toe" (also with secondary meanings dealing in counting and numerals), related to dicere "tell, say, point out" (see diction). Numerical sense is because numerals under 10 were counted on fingers. The "finger or toe" sense in English is attested from 1640s.
1. Australia had 15 years of double-digit inflation.

2. Her telephone number differs from mine by one digit.

3. The computer can multiply two 10 - digit numbers in 1 / 1000 second.

4. I cannot see more than that, except beyond plankton is the digit zero.

5. He mentally computed the square root of a hundred - digit number in fifty - two minutes .

[ digit 造句 ]