The story
Borrowed from Japanese ファミコン (famikon), a syllabic abbreviation of ファミリーコンピューター (famirīkonpyūtā), a wasei eigo (和製英語; pseudo-anglicism) derived from family + computer.
Etymology from Wiktionary, CC BY-SA 4.0.
Famicom
Today it means: A Family Computer (chiefly those available within Japan). Full definition →