A person who defaults on an obligation, especially a small one.
"The tenant decided to welch on his promise to pay the overdue rent by simply ignoring the landlord's demands."
In plain English: A welch is an old-fashioned name for a small, round fruit that grows on bushes and has fuzzy skin with seeds inside.
"He promised to pay back his friend but ended up welching on the deal."
Usage: Welch is primarily used as a verb meaning to refuse payment of a small debt or bill rather than defaulting on major financial obligations like mortgages. As a noun, it refers specifically to the person who commits this act of non-payment in everyday transactions.
To fail to repay a small debt.
"After borrowing five dollars from his friend, he decided to welch and never paid it back."
In plain English: To welch means to go back on your word and refuse to do something you promised.
"He decided to welch on his promise and didn't show up for work tomorrow."
A British and Irish surname, from nicknames, a variant of Walsh.
"The genealogy book listed Welch as a common British and Irish surname derived from the nickname variant of Walsh."
Welch is simply an alternative spelling of the word Welsh, which comes directly from the name of the Celtic people and their language. The term entered English to refer specifically to someone or something associated with Wales.