List: out-dated or obsolete kana usage

obsolete reading  noun  noun (generic) 

• above the clouds, the heavens

obsolete reading  noun  noun (generic) 

• luxury, splendour, splendor, prosperity

obsolete reading  noun  noun (generic) 

• love letter, billet-doux

obsolete reading  noun  noun (generic) 

• transverse flute (e.g. a fife)

obsolete reading  な adjective  adjective (generic)  noun  noun (generic) 

• troublesome, bothersome, tiresome, annoying

obsolete reading  noun  noun (generic) 

• favour, favor, benefit

obsolete reading  rarely used kana form  rarely used kanji form  search-only kanji form  usually written using kana alone  noun  noun (generic) 

• puffer fish, blow fish, fugu, globefish, swellfish

obsolete reading  JLPT N1  usually written using kana alone  godan verb  godan verb (archaic)  verb (generic)  intransitive verb 

• to become attached (to), to take (to), to become affectionate (with), to be tamed, to get close (e.g. to someone emotionally), to become intimate (with)

gikun or jukujikun  obsolete reading  usually written using kana alone  noun  noun (generic) 

• sea cucumber (Holothuroidea spp.)

obsolete reading  rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• eared seal (esp. the California sea lion, Zalophus californianus), sea lion