[ thangk-yoo-mam ]
/ ˈθæŋk yʊˌmæm /
a bump or depression in a road that jars a person riding over it.
Worldly Ways To Say “Thank You”This small but mighty phrase, which dates from the 15th century, goes a long way in acknowledging kindnesses big and small.
Origin of thank-you-ma'am
An Americanism dating back to 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019