adj o, ā lit. heavy-ended (epithet of a type of `dian' metre; see Rannsachadh na Gàidhlig ii 278 ): dian urtrom ocus dian iartrom, Laws v 60.3 Comm. dian iartrom, IT iii 33 § 8. Cf. airthrom, midthrom, ib. § 6 , §7 and p. 162 . focluc fo seir(id) for aur[ṡ]ing for midshing for iarshing, for aurthruim for midtruim for iartruim , O'Mulc. 537.