Barbaric terrorist Shabia,
Tigray was able not only to feed itself but also had demonstrated how to change a semi-arid land to green until your barbaric ragtag army invaded, leveraging the Ethiopian army and Arab drones among others, and looted from little kitchen items to domestic animals, from transport equipment to factory machinery and destroying whatever you cannot loot. You dwarf ISIS in your cruelty and barbarism.
With respect to language, as the name implies Tigrigna belongs to Tigrray, while Eritringa (which is mixed with Italian & Arabic) belongs to Eritrea.