とこ 常しえ LinksSentence search for 常しえSentence search for とこしえSentence search for 長しえSentence search for 永えSentence search for 永久Kanji details for 常Edit in JMdict Noun, Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi)1. eternityUsually written using kana aloneOther forms長しえ 【とこしえ】、永え 【とこしえ】、永久 【とこしえ】 Discussions Log in to talk about this word.