irgend
Translation
some, any
Examples
Hast du irgendeine Idee?
Do you have any idea?
Das kann man irgendwo kaufen.
You can buy that somewhere.
Irgendwer hat geklingelt.
Someone rang the bell.
Grammar Patterns
irgend + indefinite article ((sth.)) some/any... Gib mir irgendein Buch.
irgend + question word ((...)) some... (someone, something, somewhere) Irgendwer muss das wissen.
Similar Words
some, any; Antonyms: specific, particular
Etymology
From Middle High German 'irgen', meaning 'anywhere, ever'. It's a particle indicating indefiniteness.
Memory Tips
Consider it a 'scrambler' for question words. It takes a question word like 'wer?' (who?) and makes it indefinite: 'irgendwer' (someone).