Blood of Unity (ʃɐ:x mætɬuxʔwɐ)
TW: References to suicide (in a traditional, ritual manner)
The Morvátu are well known for the strong adherance to tradition and rituals, seen primarily in how they adress one another, their complex body language and social codes.
One such tradition is the Ghoj'jah Tlhetlh, the Duel of Claimed Honor, a ritual duel in which a child fights their mentor in a martial display of ability with the goal of defeating their mentor and thus claim their own ghoj (very loosely translates to "Honor", but it's far more complex than that), rather than be a child and rely on the ghoj of their house.
The drink is common in celebrations of all kinds in the western cultures, but "children", according to the tlhetlh tradition, are not allowed to drink it. Once a person has passed their mentor's test, they are full parts of their house and thus allowed to take part of the blood of unity. It's therefor common that at the tlhetlh celebrations, the now adult morvátian gets to drink the spiced wine for the first time, usually leading to a lot of grimacing, screaming and coughing.
Blood of Unity
Another tradition tightly bound to the ghoj'jah tlhetlh is the drinking of the Sah Metlhuh'wa, the "Blood of Unity". Traditionally, the drink is a type of strongly spiced, hot wine-like drink, made from bloodberries and local spices. Yes, the morvátians have an obsession with blood. Everything is related to blood in one way or another. You better get used to it if you're to spend any kind of time in the western kingdoms.
The blood is, as mentioned, a sharply spiced wine that is heated to near boiling before serving and then allowed to cool down to a drinkable temperature. What that temperature is varies a lot between personal preference, and there's always a competition among the more prominent drinkers in who can drink the hottest without making too much of a fuss.
Usage outside of tradition
The blood of unity, or just "spiced hot-wine", is a relatively common drink in some parts of the peninsula but the amount of consumption varies wildly. Some people never drink it, some do it almost daily. It's very much a cultural and preference decision.
The only thing that the morvátian cultures have in common is that it is the traditional drink to bring out for any bigger event and in particular for traditional rituals, such as the tlhetlh, ritual suicide or celebrations.
Duel of Claimed Honor
The "Duel of Claimed Honor" is a tradition among some western cultures, particularly the Irdárians. It is a coming of age ritual where a child gains their right, and responsibility, to bear arms.
The Morvátu stem from the west. The Morvátian Peninsula house many kingdoms and they all share in common cultural traits, gathered under the label of "Morvátian".
The western reaches, dominated by a culture that values strength and honor.