- er-5, erǝ-, thematic (e)r-ĕ-
- er-5, erǝ-, thematic (e)r-ĕ-English meaning: rare, loose, crumblyDeutsche Übersetzung: “locker, undicht, abstehend; auseinandergeben, auftrennen”Material: O.Ind. r̥tē with abl., acc. “ with exclusion of, without, except, besides” (loc. a participle *r̥ta- “ separated, secluded “), nírr̥ti-ḥ “ resolution, decay, downfall, ruin”; ár-ma- pl. “ debris, ruins “, armaká- “ trũmmerhaft “ or n. “ Trũmmerstätte “ (meaning somewhat doubtful); *erǝ- in īrma- “wound”; themat. *(e)r-e- in virala- “ standing apart, leaky, rare “; Maybe zero grade in Alb. (*erala-) rallë “rare”. Gk. ἐρῆμος, Att. ἔρημος “ lonely “; quite doubtful Lat. rürus “having wide interstices between its parts, of a loose texture, not thick or dense, thin, loose, scattered, scanty, far apart; miLith. in loose order; in gen. rare, infrequent; sometimes extraordinary, distinguished. adv. raro, rare, seldom, rarely “ (*erǝ-rós), rather credible rēte “net, thread” (compare under Lith. re ̃tis, Ltv. rēta ); maybe Alb. (*rēte) rrjetë “net” Lith. yrù, ìrti ‘separate, resolve, distinguish”, paĩras “ lax, loose “; re ̃tis m. “ phloem sieve “ (with unoriginal second accent, as often in i-stems), Ltv. rēta, rēte ‘scar”, rēni rudzi “ leaking standing rye “; Lith. er̃tas “wide, far, spacious “ (“*standing apart “); from the light basis rẽtas “thin, spacious, seldom” (from the themat. root form *(e)r-e-, as also:) rẽsvąs ‘seldom, thin”, paresvis “ sparse “; O.C.S. oriti “dissolve, overthrow, destroy” (Kaus. *oréi̯ō “make break up”), Ser.-Cr. obòriti “prostrate, throw down”, Cz. obořiti “destroy”, Russ. razorítь ds. Maybe Alb. rrëzonj “bring down” : Russ. razorítь er-dh-: O.Ind. ŕ̥dhak “ especially, peculiar, particular “, árdha-ḥ “ part, side, half “, ardhá- “half”, n. “part, half”; Lith. ardaũ, -ūti ‘separate, split” (Kaus., as Church Slavic oriti) ; er̃dvas “wide, capacious”, Ltv. ǜrdaws, ir̃dens “ lax, friable”, ḕrds “ lax, commodious (capacious “), ir̃dít, ir̃dinât “loosen, separate”, ḕržu, ḕrdu, ḕrst ‘separate”. rē-dh-: O.C.S. rědъkъ ‘seldom” (probably shifted stress, compare Cz. řidkū, Sloven. rẹd́ ǝk, in spite of Serb.-kroat. rȉjedkī, rîdkī); about ered- see above S. 329 f., about ereu- under different article under S. 337. To what extent those from Persson Beitr. 666, 773, 839 f. considered as extensions of *er(ǝ)- roots really derive rē-d- ‘scratch”, rei-, reu- “tear open”, is doubtful; die by *er(ǝ)- esp. significant meaning of loose, leaking, standing apart allow to miss them completely or recognize at least not as dominant meaning.References: WP. I 142 f., Trautmann 12 f.
Proto-Indo-European etymological dictionary. 2015.