An indefinite adverb (properly written as two words, δή που) carrying different shades of probability depending on context. In tragic and Attic texts, it usually expresses confidence: 'doubtless,' 'I presume,' or 'surely,' often appearing in phrases like 'you surely know' or 'you certainly remember.' In Homeric usage it can mean 'perhaps' or 'it may be,' expressing less certainty. When used interrogatively, it typically implies an affirmative answer ('I presume you know?' meaning 'you do know'). With a negative, it can imply a negative expectation ('surely it is not so?').