Japanese borrowed animēshon in the 20th century, clipped it to anime, and English reborrowed the clipping in the 1980s and 90s to mean specifically Japanese animation. In Japan the word still means all animation; abroad it means theirs.
The story the industry tells on itself: Osamu Tezuka, the God of Manga, grew up marinating in Disney and Betty Boop, and the giant anime eye is Fleischer and Disney design adapted to a starving TV studio, big expressive faces because Astro Boy (1963) could afford only a few moving cels. Anime's signature look is an American import that Japan returned improved.
The heavyweight claim, from critic Otsuka Eiji to Takashi Murakami's Little Boy exhibition: postwar anime's obsessions, apocalypse, mutation, infantilized cuteness, are the aesthetic of defeat and the atomic bombings, trauma rendered adorable and sold back to children. On this reading the industry is one long act of not talking about 1945.
A word traveled west and came back meaning something narrower and stronger. What else in your vocabulary is a return trip?