Kamas

From Dofus

Kamas are the currency of Amakna. They are earned for defeating enemies in combat, selling items and completing certain quests.

The symbol for kamas is a stylized K. Any NPC or other game price using K means kamas.

However, the suffix 'k' often means 1.000 of something. This leads to some ambiguity when a player wants to trade something for '10k'. Most players will use the double k to indicate any item selling or buying in the thousands. (10kk for cape, etc.)