other
electro- (prefix)
B1
elektro- is a combining form/prefix meaning 'electric' or 'electro-' used to build compound nouns (e.g., Elektromotor). Not an independent lexeme; appears in technical and commercial terms. It coexists with electr- / elektr- variants; spelling choice depends on established word formation, not grammatical inflection.
Examples
Die Firma stellte ein elektro-Auto vor, das weiterfuhr, weil die Batterie größer war.
The company presented an electric car that ran longer because the battery was larger.
Das Wort „Elektroauto" beginnt mit dem Affix elektro-.
The word 'Elektroauto' starts with the prefix electro-.
Details
Mnemonics
Picture a lightning bolt stuck to the front of a word (the bolt = 'elektro-'), showing electricity powering the compound.
Sounds like English 'electro' (as in electro- music or electrocuted).
Notes
A forming element (combining form) used to make compounds meaning 'electric' or 'electronic' (e.g., Elektroauto, Elektronik). It is not a standalone word.