[Chainmail]

Actually “defuse” would be incorrect: “fuse” is either bonding two elements together or and electrical element designed to break a circuit at an unacceptably high current.

A fuze is a detonating device for igniting the explosive fill of an artillery projectile, mortar bomb, grenade or an aircraft bomb.

To “defuze” those devices means to remove the fuze and render them safe.

Hence, “defuze”. I understand that most of you have little experience with these matters and that common usage tends to blur meanings but this is one subject I know well.

[notdownwidems]

You’re right, and that makes good sense, thanks for that.

[Robert DeLong]

While I mistaken stated it was the Arabic spelling, I really meant to type the archaic spelling. Defuze is the archaic spelling of defuse. But I'll take your word for it, though it seems they both share the same meaning, and that the spelling most commonly used in today's language is with the s not the z.

Definition of FUZE

They even use fuse and fuze seemingly interchangeably.