arddansoddiaeth

== Welsh == === Etymology === arddansoddi (“to analyse”) +‎ -iaeth === Pronunciation === IPA(key): /ˌarðanˈsɔðjɛθ/ === Noun === arddansoddiaeth m metaphysics === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “arddansoddiaeth”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies