twm penddu

Welsh

Etymology

Literally, “black-headed tom”.

Noun

twm penddu m (plural tymiau penddu)

1. Eurasian blackcap (Sylvia atricapilla)

Synonyms

• telor penddu

Mutation

Mutated forms of twm penddu

radical	soft	nasal	aspirate
twm penddu	dwm penddu	nhwm penddu	thwm penddu

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.

Further reading

• Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur‎, retrieved 6 September 2025.
• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “twm penddu”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies