Etymology of names of playing cards?


According to the [Japanese
wikipedia](https://ja.wikipedia.org/wiki/%E3%83%88%E3%83%A9%E3%83%B3%E3%83%97#.E6.97.A5.E6.9C.AC.E3.81.A7.E4.B8.80.E8.88.AC.E7.9A.84.E3.81.AA.E3.82.AB.E3.83.BC.E3.83.89),
the playing cards ("trump") are named as follows (written in Japanese in
katakana):

A: Ace

2: Deuce

**3: _torei_**

**4: _keito_**

**5: _shinku_**

**6: _saisu_**

7: Seven

8: Eight

9: Nine

10: Ten

J: Jack

Q: Queen

K: King

It's quite clear that many names among those are from English. Those in bold
type here are quite etymologically obscure. Does anyone know about their
origins?




That Japanese Wikipedia entry says

> "エースおよびデュースは元々それぞれ **ダイス**
> の1および2を表す言葉である。以前は3〜6はそれに倣って順にトレイ、ケイト、シンク、サイスと呼んでいた事もある"

and English Wikipedia entry about
[dice](https://en.wikipedia.org/wiki/Dice#Terms) says the following:

> "While the terms ace, deuce, trey, cater, cinque and sice have been made
> obsolete by one to six, they are still used by some professional gamblers to
> designate different sides of the dice. Ace is from the Latin as, meaning "a
> unit";[18] the others are 2 to 6 in old French.[19]".

So, these names were borrowed from English (ultimately from old French). Aside
from etymology, these are completely obsolete and most Japanese don't even
know them.




That Japanese Wikipedia entry says

> "エースおよびデュースは元々それぞれ **ダイス**
> の1および2を表す言葉である。以前は3〜6はそれに倣って順にトレイ、ケイト、シンク、サイスと呼んでいた事もある"

and English Wikipedia entry about
[dice](https://en.wikipedia.org/wiki/Dice#Terms) says the following:

> "While the terms ace, deuce, trey, cater, cinque and sice have been made
> obsolete by one to six, they are still used by some professional gamblers to
> designate different sides of the dice. Ace is from the Latin as, meaning "a
> unit";[18] the others are 2 to 6 in old French.[19]".

So, these names were borrowed from English (ultimately from old French). Aside
from etymology, these are completely obsolete and most Japanese don't even
know them.

