The story
- Hokkien · derived from在穩 /在稳“experienced and composed; safe; reliable; trustworthy”
- Hokkien · derived from在“steady”
- English todayzai
From Hokkien 在 (chāi, “steady”); likely a shortening of Hokkien 在穩 /在稳 (chāi-ún, “experienced and composed; safe; reliable; trustworthy”), in the sense of a person being solid, experienced, and collected under pressure.
Etymology from Wiktionary, CC BY-SA 4.0.