This feels like the opposite of 减/減 (Reduce/Subtract/Decrease/Diminish): What's it got to do with water?. I read 演 ＝ 氵+ 寅 but what's it got to do with water!? How did it get its modern meanings?. I screenshot Yellowbridge.
Please explain definitions 4-5 from Wiktionary, as they differ from the standard definitions 1-3.
- (Cantonese) Modal particle expressing emphasis.
- (Taishanese) need to (do something); have to