Heidegger here hyphenates the word Wahrheit (truth) so as to expose its stem, wahr. He points out elsewhere that words with this stem have a common derivation and underlying meaning (Science and Reflection, QCT p. 165). Such words often show the connotations of attentive watchfulness and guarding that he there finds in their Greek cognates, horao, ora, e.g., wahren (to watch over and keep safe) and bewahren (to preserve). Hyphenating Wahrheit draws it overtly into this circle of meaning. It points to the fact that in truth, which is unconcealment (Unverborgenheit), a safekeeping carries itself out. Wahrheit thus offers here a very close parallel to its companion noun Entbergung (revealing; literally, harboring forth), built on bergen (to rescue, to harbor, to conceal). See n. 10, above. For a further discussion of words built around wahr, see T 42, n. 9. (QCT p. 12)