[1] In Sumerian, the equative was formed by adding the suffix -gin7 to a noun phrase, for example: lugal"king"→ lugal-gin7"king-like", "like a king"lugal → lugal-gin7"king" {} {"king-like", "like a king"}nitah-kalaga"mighty man"→ nitah-kalaga-gin7"like a mighty man"nitah-kalaga → nitah-kalaga-gin7{"mighty man"} {} {"like a mighty man"}In Ossetic, it is formed by adding the suffix -ау [aw]:[2] фӕт"arrow"→ фӕтау"arrowlike"фӕт → фӕтау"arrow" {} "arrowlike"НицыфенӕгауйӕхиакодтаНицы фенӕгау йӕхи акодтаlit.
"nothingseer-like himself made" ("[he or she] pretended to see nothing").The equative case is also found subdialectally in the Khalkha dialect of Mongolian, where it can be formed by adding the suffixes -цаа [tsaa], -цоо [tsoo], -цээ [tsee] or -цөө [tsöö], depending on the vowel harmony of the noun.
It is rare and highly specialized, used exclusively to denote the height or level of an object:[3] эрэг"[river]bank"→ эрэгцээ"as high as the bank"эрэг → эрэгцээ"[river]bank" {} {"as high as the bank"}өвдөг"knee(s)"→ өвдөгцөө"up to the height of the knee(s)"өвдөг → өвдөгцөө"knee(s)" {} {"up to the height of the knee(s)"}In Archi, a Northeast Caucasian language, the equative case is indicated by the case marker -qʼdi:[4] misgin-ni-qʼdipoor-OBL-EQUmisgin-ni-qʼdipoor-OBL-EQU"In the way of the poor.
[citation needed] Welsh, though it has no equative case of nouns, has an equative degree of adjectives, usually indicated by the suffix -ed: for example, "hyned" (â ...), meaning "as old (as ...)".
[5] Sireniki Eskimo had an equative (or comparative) case for describing similarities between nouns.