From Proto-Indo-European *h₃r̥dʰwós. Cognate with Latin arduus.
*ardwos
O/ā-stem | |||
---|---|---|---|
masculine | singular | dual | plural |
nominative | *ardwos | *ardwou | *ardwoi |
vocative | *ardwe | *ardwou | *ardwoi |
accusative | *ardwom | *ardwou | *ardwoms |
genitive | *ardwī | *ardwous | *ardwom |
dative | *ardwūi | *ardwobom | *ardwobos |
instrumental | *ardwū | *ardwobim | *ardwobis |
feminine | singular | dual | plural |
nominative | *ardwā | *ardwai | *ardwās |
vocative | *ardwā | *ardwai | *ardwās |
accusative | *ardwam | *ardwai | *ardwams |
genitive | *ardwās | *ardwous | *ardwom |
dative | *ardwai | *ardwābom | *ardwābos |
instrumental | *? | *ardwābim | *ardwābis |
neuter | singular | dual | plural |
nominative | *ardwom | *ardwou | *ardwā |
vocative | *ardwom | *ardwou | *ardwā |
accusative | *ardwom | *ardwou | *ardwā |
genitive | *ardwī | *ardwous | *ardwom |
dative | *ardwūi | *ardwobom | *ardwobos |
instrumental | *ardwū | *ardwobim | *ardwobis |
R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “ardd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies