What does かぎのあるヱ mean?


In the [Japanese radiotelephony
alphabet](https://en.wikipedia.org/wiki/Japanese_radiotelephony_alphabet#Kana),
all kana are assigned a mnemonic code word in the form _Nippon no ni_
(日本のニ)... except one.

ヱ ( _we_ ) alone stands out with _kagi no aru we_ (かぎのあるヱ). Why is this used
instead of eg. ゑびすのヱ, and what does " _we_ that has the key" mean?

Note that ゐどのヰ is used for ヰ, another obsolete kana with a homophone, so I
presume there's more to it that just avoiding potential confusion between エ
and ヱ.




I think it means "the e with the hook". If you compare エ with ヱ, ヱ has a hook
in the first horizontal.




I think it means "the e with the hook". If you compare エ with ヱ, ヱ has a hook
in the first horizontal.

