The term "yarn-over" refers only to the act of wrapping the yarn around the needle, and not to the working of the next existing stitch.
ðə tˈɜːm "jˈɑːɹnˈoʊvɚ" ɹᵻfˈɜːz ˈoʊnli tə ðɪ ˈækt ʌv ɹˈæpɪŋ ðə jˈɑːɹn ɚɹˈaʊnd ðə nˈiːdəl, ænd nˌɑːt tə ðə wˈɜːkɪŋ ʌvðə nˈɛkst ɛɡzˈɪstɪŋ stˈɪtʃ.