Sentence:  When a number contains the whole of another in itself, and some part of it besides, it is called <WSD>superparticular</WSD>. And if the part of the less it contains is the half, it is called sesquialter; if the third part, sesquitertian; if the fourth, sesquiquartan; if the fifth, sesquiquintan. And the like names being employed to infinity, the form of <WSD>superparticular</WSD> numbers will also proceed infinitely. 
Meaning of the word marked with <WSD> tags:  Of a natural number, being larger than another natural number by a unit fraction of that smaller number.