bustl

Welsh

Etymology

From Proto-Celtic *bistlo-: de Vaan notes that the word is only found in Latin (Latin bilis) and Brythonic and does not rule out a substrate borrowing for both; however, it could instead be a derivative of a preform *bid-tli-, from Proto-Indo-European *bʰeyd- (“to split off, bite”), referring to the substance's bitterness. Cognate with Breton bestl.

Noun

bustl m (plural bustlau)

1. bile, gall, choler

Mutation

Mutated forms of bustl

radical	soft	nasal	aspirate
bustl	fustl	mustl	unchanged

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

References

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “bustl”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
• De Vaan, Michiel (2008) “bilis”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 72