pre-noun adjectival
Archaic or literary pre-noun adjectival (rentaishi) used before nouns to mean 'long' or 'eternal'. In modern Japanese, 長い (ながい) or 永遠の (えいえんの) are used instead. Found in classical texts or fixed expressions.
Over long years, the legend was passed down.
永の別れとなった。
It became an eternal farewell.
almond-shaped eyes; slit eyes
Archaic or literary pre-noun form meaning 'long' or 'eternal'. The kanji 長 is standard for this meaning, but the form 長の is not common in modern Japanese.
Alternate kanji spelling emphasizing 'eternal' or 'perpetual'. Also rare and literary.
Derived from the classical adjective 長し (ながし) meaning 'long' or 'eternal', with the archaic attributive form 長の (ながの) used before nouns. The kanji 永 emphasizes the 'eternal' nuance.