4 letters:
bara, jara, lara, mara, nara, rara, tara, vara

5 letters:
abara, acara, adara, afara, akara, alara, amara, anara, apara, arara, asara, atara, baara, barra, carra, chara, daraa, darra, elara, farra, gaara, harra, ibara, isara, jarah, jarra, khara, kiara, klara, kwara, maara, mahra, marra, miara, nahra, obara, ogara, okara, omara, parra, psara, saara, saraa, sarra, shara, skara, smara, spara, stara, svara, swara, t-ara, ta-ra, taara, tarra, thara, tiara, tzara, udara, utara, vdara, waara, yaara, yarra, zahra, zoara

6 letters:
adhara, adjara, akhara, aksara, aldara, amarra, amhara, angara, aniara, ansara, antara, apsara, asmara, atbara, awaara, aymara, azzara, camara, canara, casara, chiara, cynara, damara, delara, dinara, dobara, ektara, endara, fanara, femara, fujara, gadara, gemara, guzara, hawara, himara, ibarra, idgara, ishara, isvara, izarra, jacara, jarara, jawara, kamara, kanara, kiiara, kinara, kitara, komara, kotara, kumara, kuzara, labara, lebara, lupara, madara, makara, malara, manara, matara, megara, melara, mtwara, naarah, nagara, namara, negara, nesara, novara, o'bara, o'mara, omeara, ostara, patara, picara, satara, savara, sawara, sbarra, scarra, sciara, sharaa, sitara, sycara, takara, talara, tamara, tazara, thiara, totara, uehara, vanara, vihara, yawara, ybarra, zabara, zahara, zatara

7 letters:
aabpara, alamara, aricara, arikara, avatara, baccara, bambara, banjara, batwara, bergara, beshara, bokhara, bondara, bukhara, candara, cantara, carrara, cassara, chikara, cigarra, cithara, cuchara, dallara, dammara, deodara, dushara, euskara, ferrara, ficarra, fiumara, fludara, gandara, gaspara, guevara, honiara, houbara, ishvara, jamtara, kaskara, kithara, kunwara, kupwara, kussara, lazzara, leonara, mandara, marrara, mazzara, mbarara, mojarra, montara, mortara, musarra, mystara, naenara, navarra, o'meara, odawara, piffara, pilbara, pizarra, pokhara, pripara, pullara, qattara, rah-rah, samarra, samsara, sankara, saqqara, sciarra, segarra, sharara, shikara, shkhara, sikhara, sinmara, sitaara, skyrora, tachara, tammara, tangara, tantara, toccara, tripara, tuatara, unipara, uyehara, vergara, vistara, xiomara, zangara, zaphara, zingara

8 letters:
ahamkara, ahankara, almenara, anusvara, apasmara, barabara, bhaskara, bhilwara, capibara, capybara, caracara, chewdara, chitarra, crantara, damodara, demerara, dichiara, dobaaraa, durdhara, finvarra, fujiwara, gandhara, ghaghara, guitarra, gurdwara, hagiwara, harihara, hasimara, ichihara, ishihara, kawahara, kuldhara, kumahara, kurihara, kuwahara, lacovara, magnaura, manthara, marinara, mitahara, miyahara, muhabara, nakahara, niobrara, ohkawara, parapara, phagwara, przywara, pupipara, samskara, saputara, sayonara, seminara, shannara, shikhara, shiokara, siserara, sringara, sugihara, tenggara, toxocara, uenohara, uzundara, vaalbara, vadodara, vizcarra, yogacara

9 letters:
akihabara, al-baqara, alcantara, alcaparra, baridhara, bimbisara, bindusara, botifarra, carbonara, connemara, cucchiara, dharahara, digambara, dulcamara, fissipara, gadarwara, gemmipara, guanabara, gurudwara, hunedoara, illawarra, khakkhara, kir'shara, manilkara, matsubara, muhammara, mujaddara, muladhara, multipara, narawarah, nathdwara, nayantara, nullipara, nusantara, ogasawara, onigawara, parashara, primipara, sahasrara, sassarara, shilahara, solfatara, terramara, timisoara, tupuxuara, uttarpara, vamachara, vasudhara, yogachara, yoshihara, yoshiwara

10 letters:
aokigahara, birkirkara, brizzolara, chhindwara, dhrubatara, jalandhara, manvantara, midagahara, nalakuvara, nayanthara, pratyahara, quadripara, quintipara, ramanagara, sagamihara, vajradhara, veer-zaara, yuru-chara

11 letters:
ajinkyatara, bhandardara, biu-mandara, dashavatara, guadalajara, gunditjmara, kashiwahara, onechanbara, pitjantjara, raajakumara, secundipara, torrechiara

12 letters:
brahmavihara, kolombangara, oneechanbara, panchamakara, salakanagara, takamagahara, tarumanagara, venkateswara, vijayanagara

13 letters:
akshayakumara, ngaanyatjarra

14 letters:
avalokitesvara, pitjantjatjara

15 letters:
ardhanarishvara, avalokiteshvara, kotilingeshwara

16 letters:
kathasaritsagara

17 letters:
gurjara-pratihara

18 letters:
patikulamanasikara

3 letters:
ira, ara, era

4 letters:
aura, sura, dura, euro, kera, sara, lyra, cora, nora, lira, para, hera

5 letters:
anura, clara, durra, laura, naira, flora, torah, tayra, sarah, doura, asura, taira, ahura, farah, mwera, quira, vajra

6 letters:
sclera, remora, fedora, sierra, tabora, aurora, hegira, senora, datura, angora, monera, sutura, achira, pleura, hejira, sonora, sahara, sirrah, andira, dourah, gynura, menura, oxyura, rivera

7 letters:
sophora, zostera, signora, gerbera, riviera, drosera, pandora, camorra, chimera, lempira, andorra, purpura, viverra, mascara, madeira, diptera, palmyra, apatura, asahara, bursera, caesura, cascara, darmera, frasera, gymnura, hatiora, khepera, listera, maclura, protura, provera, radyera, rumohra, tempura, ventura

8 letters:
ephemera, gomorrah, anoplura, monstera, heuchera, pyorrhea, plethora, vinifera, rotifera, porifera, missouri, lonicera, canberra, calabura, chateura, chimaera, chlorura, gomorrha, goodyera, isoptera, lavatera, lecanora, liakoura, plumiera, saqqarah, svizzera, usumbura

9 letters:
logorrhea, chelicera, brachyura, hemiptera, thysanura, bujumbura, carnivora, angostura, chrysaora, condylura, heritiera, homoptera, lichanura, mangifera, manticora, megaptera, mellivora, muscivora, oenothera, radiigera, scutigera, spirogyra, tuscarora, xiphosura, zenaidura, zygoptera

10 letters:
neurospora, nematocera, leptospira, mandragora, coloratura, ctenophora, kookaburra, passiflora, branchiura, orthoptera, rhizophora, indigofera, amphineura, anisoptera, carnosaura, cercospora, chiroptera, coleoptera, dermaptera, dermoptera, embioptera, forestiera, multiflora, neuroptera, phylloxera, rhinoptera, scorzonera, spodoptera

11 letters:
onychophora, dictyoptera, heteroptera, hymenoptera, lepidoptera, macrocheira, maniraptora, megaloptera, trichoptera

12 letters:
nomenklatura, foraminifera, mastigophora, acciaccatura, appoggiatura, balaenoptera, diapheromera, heteranthera, phytophthora, rhodosphaera, siphonaptera, thysanoptera

13 letters:
ichthyosauria, anadenanthera, entomophthora, ephemeroptera, pseudowintera, schlumbergera

14 letters:
megachiroptera

15 letters:
microchiroptera