Simple past tense and past participle of codename.(verb)
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Use "codenamed" in a sentence
"Three years ago when we finally found out the amazing secret behind the Nintendo Wii (then known as the codenamed Revolution)"
"Adding to the intrigue, in December, 2007, Narco News reported that according to DEA officials who spoke on the condition of anonymity, the crashed Gulfstream II jet "was part of an operation being carried out by a Department of Homeland Security agency" codenamed "Mayan Express"."
"It also includes an "I / O hub" codenamed "Langwell", which supports connection to wireless, storage, and display components."