kõvendanud
Kõvendanud is the past active participle of the Estonian verb "kõvendama," which translates to "to harden," "to strengthen," or "to toughen." As a participle, it describes a state or action that has been completed and has resulted in a hardened, strengthened, or toughened condition. For example, "kõvendanud nahk" would mean "hardened leather," indicating that the leather has undergone a process that made it more resistant or firm. Similarly, "kõvendanud lihased" would refer to "strengthened muscles," implying that physical exertion or training has made them more robust. The word can be used in various contexts, from describing physical objects and materials to abstract concepts like character or resolve. It signifies a transformation from a softer or weaker state to a more durable or resilient one. The active nature of the participle suggests that the hardening or strengthening process was a direct result of an action, either by an external force or by the subject itself.