異い年ねん号ごう

noun

unofficial era name; apocryphal era name

A rare historical term for a Japanese era name (年号) that was proposed or used unofficially, outside the officially recognized list. Often contrasted with 逸年号 (いつねんごう), which refers to era names omitted from official histories.

See also: 逸年号

• 異い年ねん号ごうは、正せい史しに記き録ろくされていない非ひ公こう式しきの元げん号ごうを指さす。

  An 'inen-gō' refers to an unofficial era name not recorded in the official histories.