Danish (standard-bass), Hungarian & Icelandic: Harmonika. French: Accordéon. German: Akkordeon. Italian: Fisarmonica. Polish: Akordeon, harmonia.
Depends on configuration:
Right-hand manual
Left-hand manual
Hand-pumped: Bandoneón, Concertina, Flutina, Garmon, Trikitixa, Indian harmonium
Foot-pumped: Harmonium, Reed organ
Mouth-blown: Melodica, Harmonica, Laotian Khene, Chinese Shêng, Japanese Shō
Electronic reedless instruments: Electronium, MIDI accordion, Roland Virtual Accordion
Combination acoustic/electronic instruments: