You know the word apostrophe, but what about anastrophe, which was Oxford Dictionaries 'word of the day' today. The definition is 'The inversion of the usual order of words or clauses', the sort of thing that occurs in literature or poetry for effect, even children's poetry (eg the line 'Mother, he said, said he' in the lovely children's rhyme by AA Milne Disobedience). Another example, again said for effect, would be something like 'Rocket science it ain't'. Yoda from Star Wars uses the rhetorical device of anastrophe, eg 'When 900 years old you reach, look as good you will not.'
The strophe bit of the word anastrophe is Greek for 'turn'. So, what have apostrophes got to do with turning? What's the link? The original meaning of apostrophe was, according to the OE, 'A figure of speech, by which a speaker or writer suddenly stops in his discourse, and turns to address pointedly some person or thing, either present or absent'. So, there's the 'turn'. The second entry for apostrophe in the OED gives today's meaning, but originally it referred, not just to the punctuation mark, but to the act of omission of one or two letters in a word itself - as the OED says 'turning away, or elision'. This meaning came into English via French and, again according to the OED, 'It ought to be of three syllables in English as in French, but has been ignorantly confused with [the other sense of apostrophe]'.