Where does “mature BL” come from?

mature BL (English) comes from English mature, from Middle English mature, from Middle French mature, from Latin mātūrus, from Proto-Celtic matus, from Czech -mat, from Czech automat, from German automat — to think, mind; spiritual activity; to stay,...

mature BL (English): A subgenre of boys’ love (BL) manga, novels, live-action films, and television dramas that depicts romantic or sexual relationships between adult men. It is characterized by more realistic, psychologically complex, or emotionally mature narratives than those found in yaoi or shotacon genres

Definitions

  1. A subgenre of boys’ love (BL) manga, novels, live-action films, and television dramas that depicts romantic or sexual relationships between adult men. It is characterized by more realistic, psychologically complex, or emotionally mature narratives than those found in yaoi or shotacon genres

Ancestry of “mature BL”, step by step

mature BL traces back through two separate lines of ancestry.

via English mature

StepLanguageWordMeaning
1EnglishmatureFully developed; grown up in terms of physical...
2Middle Englishmaturemature ripe
3Middle Frenchmature
4Latinmātūrusmature, full-grown
5Proto-Celticmatus
6Czech-mat
7Czechautomatautomaton; vending machine, automat
8Germanautomatautomaton, machine
9Ancient Greekαὐτόματονaccident, mere chance
10Ancient Greekαὐτόματοςself-willed, unbidden; self-moving,...
11Ancient Greekμέμααto wish eagerly, strive, yearn, desire
12Ancient Greekμέμοναto be minded or inclined; to be eager; to hasten
13Proto-Indo-Europeanmemóneto think, to be mindful; to remember
14Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...

via English BL

StepLanguageWordMeaning
1EnglishBL
2JapaneseBL
3Japaneseボーイズ ラブ
4EnglishLoveradiotelephony clear-code word for the letter L
5Middle Englishlovelove; strong and deep affection
6Old Englishlufulove
7Proto-West Germanic*lubulove
8Proto-Germaniclubōlove, affection
9Proto-Indo-Europeanlewbʰ-to desire, covet, want; to admire, praise; to...
10Proto-Indo-Europeanlēw-to sound, resound, sing out; to leave
Every word from Proto-Indo-European men-Every word from Proto-Indo-European memóneEvery word from Ancient Greek μέμονα