I came across this potential word equation just before the holidays, and it’s great!
Yan-nhaŋu and Yolŋu more generally: warrakan’ “animal” (particularly warm-blooded animals, and more particularly mammals and birds)
Bardi: arriyana “wedge-tailed eagle”
Not spectacular in itself, but consider the Jabirr-Jabirr and Nyulnyul form recorded in Nekes and Worms 1953 (Australian Languages, Micro-Biblioteca Anthropos), which is warrakan. Bardi regularly loses initial w and the lenition of k > y is regular here too. This gives us a reconstruction of Proto-Western Nyulnyulan *warrikana. Can’t be **warrakana, because if so that would have given Bardi **arran or arrana.
I’m assuming that this is a Pama-Nyungan loan into Nyulnyulan, with either semantic broadening in Yolŋu or narrowing in Nyulnyulan.