| 五 |
wǔ gēng | fifth of the five night watch periods 03:00-05:00 (old) |
| 五 |
wǔ | five / 5 |
| 更 |
gēng | to change or replace / to experience / one of the five two-hour periods into which the night was formerly divided / watch (e.g. of a sentry or guard) |
| 更 |
gèng | more / even more / further / still / still more |