source: episode 9 conspiracy GIF - Find & Share on GIPHY

1. decorate (cloth) by sewing patterns on it with thread:

«…で» 〈布地など〉に刺繍（ししゅう）する «with» , 【布地などに】〈模様など〉を刺繍する «on»

e.g. (as adjective embroidered) : an embroidered handkerchief

«…に» 刺繍する «on» .

e.g. no object : she was teaching one of the girls how to embroider

e.g. she had already embroidered a dozen little nighties for the babies.

produce (a design) on cloth with thread:

e.g. (as adjective embroidered) : a chunky knit sweater with embroidered flowers.

2. add fictitious or exaggerated details to (an account) to make it more interesting:

(おもしろくするために)〈物語など〉を誇張, 粉飾する, …に尾ひれを付ける(embellish)

e.g. she embroidered her stories with colorful detail.

embroiderer | əmˈbroid(ə)rər | noun

late Middle English: from Anglo-Norman French enbrouder, from en- ‘in, on’ + Old French brouder, broisder ‘decorate with embroidery’, of Germanic origin.