air ais arc ars car cis cor cos cur oar oca ora orc ors our ras ria roc sac sau sic sir sou sri
airs arco arcs asci cars ciao coir cors cris crus curs oars ocas orca orcs osar ours rias rocs sari scar soar sora sori sour sura uric ursa
arcus auric auris coirs coria curia curio orcas scaur scour
Rhai geiriau ar hap: tuberculars deeffr halakh azu reinjected