The word "chumbley" is a rare English surname derived from the Old English word "cumble" meaning "to stumble or bumble." Its pronunciation is represented by the IPA phonetic transcription /ˈtʃʌmbli/. This indicates that "ch" is pronounced as the voiceless postalveolar affricate /tʃ/, "u" is pronounced as /ʌ/ in the stressed syllable, "m" is pronounced as /m/, "b" is pronounced as /b/, "l" is pronounced as /l/, and "y" is pronounced as /i/ like in the word "sky."