Abstract:
The word we translate as ‘authenticity’ is actually a neologism invented by Heidegger, the word Eigentlichkeit, which comes from an ordinary term, eigentlich, meaning ‘really’ or ‘truly’, but is built on the stem eigen, meaning ‘own’ or ‘proper’. So the word might be more literally translated as ‘ownedness’ or even ‘being one's own’, implying the idea of owning up to and owning what one is and does.