Kangaroo word: extraneous
Joey word: extra
Definitions in relation to their use in kangaroo words, taken from Google Dictionary, and edited for formatting.
extraneous (adjective): separate from the object to which it is attached.
extra (adjective): added to an existing or usual amount or number.
The letters E, X, T, R, and A found within the kangaroo word “extraneous” arrange in the listed order to complete the joey word “extra”. While a word can have multiple definitions, in relation to their use with kangaroo words, these two words share a similar meaning: additional.