He unsoldered the blue wire leading to the switch.
unsolder in American English
(ʌnˈsɑdər)
verb transitive
1.
to take apart (things soldered together)
2.
to disunite; separate; sunder
unsolder in American English
(unˈsɑdər)
transitive verb
1.
to separate (something soldered)
2.
to disunite; sunder
to unsolder ties of friendship
Word origin
[1530–40; un-2 + solder]This word is first recorded in the period 1530–40. Other words that entered Englishat around the same time include: illegitimate, lotus, rigid, toilet, tortureun- is a prefix freely used in English to form verbs expressing a reversal of some actionor state, or removal, deprivation, release, etc. (unbend; uncork; unfasten; etc.), or to intensify the force of a verb already having such a meaning (unloose)