break someone's word

Citizen’s Participation in Procurement: Some Pitfalls
Taking someone's word for it
Ghosts, Mirrors, and Adversative Passives in Hul'q'umi'num'
Bias in IPCC WGIII Part II --
It is Not About Science, but Values --
Doing Drag: From Subordinate Queers to Fabulous Queens Drag as an Empowerment Strategy for Gay Men
More Post-Copenhagen Fallout From China --
To break one's word is pleasure-fraught,
An Inquiry into Children's Reading in One Urban School Using SRA Reading Mastery (Direct Instruction).
Im Still Here: Breakthrough Approach to Understanding Someone with Alzheimers