From the imperial ethiopia dot org site:

The oldest Ethiopian aristocracy, dating from Biblical times, was essentially tribal and military in nature, and in some cases nomadic, and this changed little during the Middle Ages. The regional rulers were known by the titles of negus (king) or amir (emir), while the sovereign was the Negusa Negest ("King of Kings"), known in the West as the Emperor. Empress is Itegue.

Instead of attempting to consider the traditional Ethiopian titles of nobility by comparing these to European titles, let's view them in their native context.

Ras is the highest noble rank, sometimes borne by minor princes of the Solomonic blood. One had to be elevated to the the rank of negus by Imperial decree, but ras was usually hereditary. (The word's origin is Indo European, hence the Indians' raj, the Egyptians' ra, the Romans' rex.)

Bitwoded (abbreviated Bit.). Literally "beloved" by the king, the highest non-royal title ranks after ras in precedence.

Dejazmach (abbreviated Dej.) is a high title which follows bitwoded in precedence. It originally referred to a "gate keeper." In more recent times, it was also a military title.

Fitawrari (abbreviated Fit.) is a noble title and was formerly a military one, meaning "leader of the vanguard." This title ranked after dejazmach.

Gerazmach (abbreviated Geraz.) ranked after fitawrari and is translated literally "military commander of the left." This is one of the lower aristocratic titles but also one of the older ones.

Kenyazmach (abbreviated Kenyaz.) is equivalent in rank to gerazmach, to which it may be considered complementary. It means "military commander of the right."

Balambaras is a lower title of nobility of ancient origin, literally "castellan" or commander of a fortress. Similar in some respects to dejazmach but considered a lesser title.

Ato. Traditionally 'sir' for a gentleman. Now "Mister."

Woizero (abbreviated Woiz.) Traditionally an aristocratic lady, now Mrs.

Lij. Literally "child," this is a title reserved to the children of the titled nobility.

Titled nobles collectively were the makwanent.