Apostrophe
mid 16th century (denoting the omission of one or more letters): via late Latin, from Greek apostrophos ‘accent of elision’, from apostrephein ‘turn away’, from apo ‘from’ + strephein ‘to turn’.
wiktionary
From French apostrophe, or Latin apostrophus, from Ancient Greek ἀπόστροφος(apóstrophos, “accent of elision”), a noun use of an adjective from ἀποστρέφω(apostréphō, “I turn away”), from ἀπό(apó, “away from”) + στρέφω(stréphō, “to turn”).
From Latin apostrophe, from Ancient Greek ἀποστροφή(apostrophḗ), from ἀποστρέφω(apostréphō, “I turn away”), from ἀπό(apó) + στρέφω(stréphō, “I turn”).
etymonline
apostrophe (n.1)
"mark indicating an omitted letter," 1580s, from French apostrophe, from Late Latin apostrophus, from Greek apostrophos (prosoidia) "(the accent of) turning away," thus, a mark showing where a letter has been omitted, from apostrephein "avert, turn away," from apo "off, away from" (see apo-) + strephein "to turn" (from PIE root *streb(h)- "to wind, turn").
In English, the mark often represents loss of -e- in -es, possessive ending. By 18c. it was being extended to all possessives, whether they ever had an -e- or not.
apostrophe (n.2)
"a turning aside of an orator in the course of a speech to address briefly some individual," 1530s, from French apostrophe, from Late Latin apostrophus, from Greek apostrophos, literally "turning away," from apostrephein "avert, turn away," from apo "off, away from" (see apo-) + strephein "to turn" (from PIE root *streb(h)- "to wind, turn"). Related: Apostrophic; apostrophize.
