List: out-dated or obsolete kana usage

popular  obsolete reading  noun  noun (generic) 

• land made arable by the slash-and-burn method, swidden, slash-and-burn farming

popular  obsolete reading  noun  noun (generic) 

• Shinto ritual

popular  obsolete reading  noun  noun (generic) 

• source of fire, sign of fire
• warmth of fire, heat

popular  obsolete reading  noun  noun (generic) 

• sparks

popular  obsolete reading  noun  noun (generic) 

• ocean, sea, the deep

popular  obsolete reading  rarely used kanji form  irregular okurigana  search-only kanji form  noun  noun (generic) 

• hiding place, hideout, refuge
• retreat, hideaway

popular  obsolete reading  noun  noun (generic) 

• sacred books, sutras, scriptures (Bible, Koran, etc.)

popular  obsolete reading  noun  noun (generic)  noun or participle taking the aux. verb する  noun taking the genitive case particle の  adjective (generic)  transitive verb 

• protection, safeguard
• shugo (Kamakura or Muromachi period military governor)

popular  obsolete reading  noun  noun (generic) 

• selection (e.g. of poems, texts), anthology, selected extracts

popular  obsolete reading  noun  noun (generic)  archaic 

• holding a job, being employed, gainful employment
• being learned, being knowledgeable
• having great artistic talent, being a skilled performer
• being well-versed in usages or practices of the court or military households