表外 ひょうがい漢字 かんじ 体表 たいひょうでしょう
hyōga ikan jijita ihyōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 表外漢字字体表

1. Probably a variant form of a kanji.; Possibly an off-standard kanji form.

Polite
Presumptive
Conjecture