-ese, olden, off-season

Many Japanese schoolchildren are likely enjoying their winter holidays now. But in olden days in China, I understand, this was the season of winter schools.
Such schools were small private academies that taught children in rural areas only during the months of the agricultural off-season.
Back then, the Chinese believed winter was the best time for reading books. In fact, their three favorite times for reading were on a rainy day, at night and in winter. That means any winter's night was the perfect time for this pursuit.

我問過老美老師這個問題，他的答案是字尾"ese"，是有點輕視的意思(但年輕的一輩已漸漸淡忘)

-ese

suff.

1. Of, relating to, characteristic of, or originating in a specified place: Vietnamese.
2. Native or inhabitant of: Taiwanese.
3. 1. Language or dialect of: Chinese.
   2. Literary style or diction of: journalese.

[Middle English, from Italian, from Latin -ēnsis, originating in.]

olden
adj.
Of, relating to, or belonging to time long past; old or ancient: olden days.

[Middle English : old, old; see old + -en, adj. suff.; see -en².]