amgrwm

Welsh

From am- (“around, circum-”) +‎ crwm (“crooked”).

amgrwm (feminine singular amgrom, plural amgrwm, not comparable)

Welsh mutation
radical	soft	nasal	h-prothesis
amgrwm	unchanged	unchanged	hamgrwm
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

Delyth Prys, J.P.M. Jones, Owain Davies, Gruffudd Prys (2006) Y Termiadur: termau wedi'u safoni; standardised terminology‎^[1] (in Welsh), Cardiff: Awdurdod cymwysterau, cwricwlwm ac asesu Cymru (Qualifications curriculum & assessment authority for Wales), →ISBN
R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “amgrwm”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies