Where does “เด็กเจ็ดเข้าเฒ่าเจ็ดสิบ” come from?

เด็กเจ็ดเข้าเฒ่าเจ็ดสิบ (Thai) comes from Thai เจ็ดสิบ, from Thai เจ็ด, from Proto-Tai cetᴰ, from Middle Chinese 七.

เด็กเจ็ดเข้าเฒ่าเจ็ดสิบ (Thai): a person whose legal capacity is limited or who is placed under guardianship, especially because of age, as a minor, a person affected by senility, etc

Definitions

  1. a person whose legal capacity is limited or who is placed under guardianship, especially because of age, as a minor, a person affected by senility, etc

Ancestry of “เด็กเจ็ดเข้าเฒ่าเจ็ดสิบ”, step by step

เด็กเจ็ดเข้าเฒ่าเจ็ดสิบ traces back through 3 separate lines of ancestry.

via Thai เจ็ดสิบ

StepLanguageWordMeaning
1Thaiเจ็ดสิบ70
2Thaiเจ็ด7; seven
3Proto-Taicetᴰseven
4Middle Chinese

via Thai เด็ก

StepLanguageWordMeaning
1Thaiเด็กchild: person below the age of adulthood; young...
2Proto-Taiɗekᴰchild

via Thai เข้า

StepLanguageWordMeaning
1Thaiเข้าto move in or inwards: to come in, to go in, to...
2Proto-Tai*χawꟲto enter
Every word from Middle Chinese Every word from Proto-Tai cetᴰEvery word from Thai เจ็ด