GUMSHOE
Meaning of GUMSHOE in English
I. ˈgəm-ˌshü noun
Date: 1913
: detective
II. intransitive verb
( gum·shoed ; gum·shoe·ing )
Date: 1930
: to engage in detective work
Merriam-Webster's Collegiate English vocabulary.
Энциклопедический словарь английского языка Merriam Webster.
2003