Proto-Lezghian: *rac̣:a
Meaning: threshing-floor
Lezghian: rat
Tabasaran: rac:
Agul: rat:
Rutul: rat
Tsakhur: at:a
Archi: c̣i
Udi: eč:
Comment: Cf. Lezg. erg. raṭ-ra, Khl. rat, plur. rat:-ar; Tab. Düb. rac:a; Rut. obl. ridi- (Ikhr. rat, rit:i-). The obl. base can be reconstructed as *roc̣:ä- (cf. Tab. rac:a-, Ag. rat:i- with vowel levelling; Rut. ridi- - instead of *rɨdi- with adoption of the more frequent -i-vocalism in the oblique stem). Arch. c̣i is actually a former locative, a contraction < *dVc̣:í 'on the threshing-floor'. The word belongs to the 4th class in all class-distinguishing languages.
See Талибов 1960a, 299; Лексика 1971, 171; Гигинейшвили 1977, 107.
