First Known Use: 15th century
Dictionary
oakum
noun oa·kum \ˈō-kəm\
Definition of OAKUM
: loosely twisted hemp or jute fiber impregnated with tar or a tar derivative and used in caulking seams and packing joints
See oakum defined for kids
ADVERTISEMENT
Origin of OAKUM
Middle English okum, from Old English ācumba tow, from ā- (separative & perfective prefix) + -cumba (akin to Old English camb comb) — more at abide
Seen & Heard
What made you want to look up oakum? Please tell us where you read or heard it (including the quote, if possible).