tymer(“temper”) ortymheru(“to temper”) +‎-edd

• IPA^(key):/təmˈhɛrɛð/
• Rhymes:-ɛrɛð

tymheredd m orf (pluraltymereddau)

1. temperature

• 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), “tymheredd”, inGeiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies