Ultimately from Proto-Indo-European *h₂m̥bʰi (“round about, around”). Cognate with Latin amb- (“around, about”), ambi- (“both”), Ancient Greek ἀμφί (amphí, “around, about”). Cognate with Cornish om-.
- self, reflexive prefix
- each other, mutual, reciprocal prefix
In many words, the original reflexive or reciprocal force of this prefix has now been lost and the relationship between the root and derived words is not always apparent, e.g. ymosod (“to attack”) from gosod (“to put, to place”), ymollwng (“to succumb, to flop”) from gollwg (“to leak, to drop”).
|Note: Some of these forms may be hypothetical. Not every|
possible mutated form of every word actually occurs.
- R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “ym-”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies