This text explores the phenomenon of forgetting within European philosophical thought, building upon Heidegger's concept of the "forgetting of Being." The author argues that this process of forgetting extends beyond Being to other fundamental concepts such as "time" and "faith." Although the terminology remains frequent in discourse, the deeper meanings are often lost or replaced by degraded interpretations. Language is viewed here as a living entity rather than a mere repository of words; it contains both "unthought" meanings waiting to be discovered and "forgotten" meanings that were once articulated but have since faded from awareness. The essay highlights "faith" as a prime example, interpreting it as an active openness to the future and a turning away from the past—a nuance often overlooked in modern reflection. Ultimately, the text suggests that language is a dynamic field where these latent or lost meanings can be revitalized, ensuring the ongoing vitality and depth of human understanding and philosophical inquiry.