Yod coalescence is a form of assimilation which tends to happen when initial /j/ (as in ‘you’, ‘your’, ‘yes’, ‘young’) is preceded by either /t/ or /d/ as the last sound in the previous word, resulting in /tʃ/ (as in ‘chin’) or /dʒ/ (as in ‘George’) instead.
You can watch this video to understand how it works. Several pop songs have been used to illustrate this phenomenon:
(Open video in a new tab)- The video is indexed: you can skip to different sections in the video by using the timeline or clicking/tapping on the section you are interested in in the description of the video (on YouTube).
You may also want to have a look at this page where you can find the pop songs mentioned in the video, as well as further real-life examples:
- External resources:
Listen to some examples being read here.