adverb
from there, therefore
B1
Means 'from there' (spatial) and 'therefore/that's why' (causal). It's an adverb used to indicate origin or consequence. Often appears at sentence start or mid-position; can affect word order (V2 in main clause). Not reflexive and needs no preposition. Common in both spoken and written German.
Examples
Es regnete stark, daher blieben die Besucher drinnen, weil das Konzert abgesagt wurde.
It rained heavily, therefore the visitors stayed inside because the concert was cancelled.
Er kam daher.
He came from there.
Sie war krank, daher kam sie nicht zur Arbeit.
She was ill, so she didn't come to work.
Details
Mnemonics
Imagine an arrow pointing from a distant spot toward you with the label 'daher' meaning 'from there'.
Sounds like 'da here' in English — 'da' (there) + 'her' (here) reversed: from there.
Notes
daher can indicate origin ('from there') or a reason/consequence ('therefore'). Context determines the meaning.