字根：numer=number,表示與數字相關的……，計數的……
接下來，我們一起來看看這個字根所涉及的全部單詞吧！
a number or something denoting a number
即可以作名詞，也可以作形容詞。A numeral is a number. When you set an online password, it's safest to use both numerals and letters.You can use numeral and number interchangeably. You can also use numeral as an adjective: "How many numeral cards are in the deck, and how many face cards?"
numerous：眾多的，許多的。
numerical/numeric: 數值型的，數字型的。
count or be able to count
即可以做形容詞：識數的，也可以作動詞：數數、列舉。作動詞時，與enumerate是同義詞（e+numerate：注意，是同表示列舉這個含義）。
To numerate is to count, number, or list. You might numerate your ten New Year's resolutions, starting with number one.
You can also use this word as an adjective to mean "fluent in understanding numbers." If you're literate, you can read, and if you're numerate, you can count, add, subtract, and generally use numbers.
numerator：分子（分母是denominator）或計算器。
numerable: 可計算的。-able形容詞後綴，表示「可...的、能...的」。enumerable：可列舉的。
denumerable：也表示可數的。
the ability to understand and work with numbers
作名詞，表示數字能力、計算能力。Numeracy involves skills that aren’t always taught in the classroom – the ability to use numbers and solve problems in real life. It means having the confidence and skill to use numbers and mathematical approaches in all aspects of life. Numeracy is as important as literacy. In fact, it's sometimes called 『mathematical literacy』.
supernumerary：多餘的，額外的。super（超過、超級的）+numerary（數字、數量），所以合起來就是：超過一定數量的。
Supernumerary is an adjective that describes something there’s too much of. If a scheduling mishap results in three extra people showing up for work, then you have supernumerary staff.
The strength of a nation derives from the integrity of the home.
---Confucius