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For a sentence such as "physics’ greatest...", would you use physics’s or physics’ ?

Microsoft Word highlights physics's as incorrect; however, I have seen it be used.

herisson
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Vedant
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1 Answers1

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My understanding is that both may be used, but that in the case of physics, the addition of 's would render the word ungainly in pronunciation, and so physics' might be preferred.

f pronunciation would be awkward with the added -‘s, some writers use only the apostrophe. Either use is acceptable.
Diana Hacker, A Writer’s Reference


With some singular nouns that end in -s, pronouncing the possessive ending as a separate syllable can sound awkward; in such cases, it is acceptable to use just an apostrophe.
Kirszner & Mandell, The Brief Holt Handbook


Since writers vary in the use of the apostrophe, it is not possible to make a hard and fast rule about the apostrophe in singular words ending in s.… Punctuate according to pronunciation.
John E. Warriner, English Grammar and Composition

SOURCE: https://www.englishrules.com/writing/2005/possessive-form-of-singular-nouns-ending-with-s/

DukeZhou
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    Historically, "physics" is actually a plural form, which might or might not be considered relevant by a pedant. – herisson Oct 04 '17 at 21:31
  • @sumelic contradicted by my comment below the question. Makes me a pedant? – Weather Vane Oct 04 '17 at 21:34
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    @sumelic Great point, although I think the singular "physic" is squarely archaic and not in common usage in the modern era. – DukeZhou Oct 04 '17 at 21:34
  • @WeatherVane: in modern English, "physics" is use to refer to a field of study, and it takes singular verb agreement (in most cases), so it can be considered a singular noun, but the fact remains that the "s" comes from the plural suffix used in words like "cats" or "dogs". How it's used in modern English doesn't change the etymology. As I said, I don't know if this etymological detail is relevant or not to the formation of the possessive: the word news also originated as a plural form, but I think I would say the news’s rather than the news’. – herisson Oct 04 '17 at 21:37
  • @sumelic is this regional - "math" in USA, but "maths" in UK? I do hope you are consistent and say "physic" where we say "physics" ;) – Weather Vane Oct 04 '17 at 21:38
  • @WeatherVane: I wasn't talking about regional variation. The "to a pedant" line was just in my comment because in my experience, pedants are the main class of people who get worked up about the use of -s’s vs. -s’. I wasn't referring to anyone in this conversation. – herisson Oct 04 '17 at 21:39
  • @WeatherVane: Basically, I'm just talking about the historical stuff mentioned in the following post: What is the difference between a “singular noun” and a “plural noun treated as singular”? – herisson Oct 04 '17 at 21:48
  • @sumelic of course, when I think of the word "physic", it's always with the old spelling "physick" (which I much prefer;) Also worth noting that the usage of "physic" relates to medicine, as opposed to physics, which, as OED points out, is treated as singular. – DukeZhou Oct 05 '17 at 16:58