bromide
definition
a trite or unoriginal idea or remark intended to soothe
example
Despite the challenging situation, his reassurance was just a bromide that failed to address the real issues at hand.
synonyms
platitudeclichébanality
word origin — The word 'bromide' originally referred to a type of chemical compound containing bromine, but in the late 19th century, it came to be used metaphorically to describe a soothing or calming remark.