Definition of alter-egoism in English:

alter-egoism

noun

  • Altruism arising from an identification of others with oneself.

Pronunciation

alter-egoism

/ˌɔːltə(r)ˈiːɡəʊɪz(ə)m/ /ˌɒltə(r)ˈiːɡəʊɪz(ə)m/ /ˌaltə(r)ˈiːɡəʊɪz(ə)m/

Origin

Late 19th century; earliest use found in Journal Speculative Philosophy. From alter ego + -ism, after egoism.