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embroider: late 14th century, from the Anglo-French word enbrouder, from the prefix en- meaning “in” (see en- (1)) plus broisder “embroider,” from Frankish  *brozdon, from Proto-Germanic  word *bruzdajanan. Influenced by Old English brogden, past participle of bregad “to weave” (see braid). Spelling with -oi- is from cerca 1600, perhaps by influence of broid “braid.”

Extended explanation: (from here)

• Anglo-French the French spoken in England from the Norman Conquest in 1066 through the Middle Ages; the administrative and legal language of England 12th-17th century
• Frankish West Germanic language of the Franks, inhabitants of northern Gaul 5th-6th century, their descendants ruled France, Germany, Italy in the 9th century, and the language had strong influence on French.
• asterisk (*) Words beginning with an asterisk are not attested in any written source, but they have been reconstructed by etymological analysis, such as Indo-European *ped-, the root of words for “foot” in most of its daughter tongues.
• Proto-Germanic hypothetical prehistoric ancestor of all Germanic languages, including English
• Old English the English language as written and spoken cerca 450 through cerca 1100.