From 流(なが)し (nagashi, “連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb 流(なが)す (nagasu).”) + 読(よ)み (yomi, “連(れん)用(よう)形(けい) (ren'yōkei, “stem or continuative form”) of the verb 読(よ)む (yomu).”).
ながしよみ • (nagashiyomi)