stigmayoudaoicibaDictYouDict[stigma 词源字典]
stigma: [16] Greek stígma denoted a ‘mark made on the skin with a sharp implement’, hence a ‘tattoo’ or ‘brand’. It was derived from the Indo- European base *stig- ‘be sharp, pierce’, which also produced English stick, stitch, etc. By the time it arrived in English, via Latin stigma, it has acquired the connotation of a ‘brand of shame’, and it was also used specifically for the marks made on Christ’s hands and feet by the nails of the cross.
=> stick, stitch[stigma etymology, stigma origin, 英语词源]
stigma (n.)youdaoicibaDictYouDict
1590s (earlier stigme, c. 1400), "mark made on skin by burning with a hot iron," from Latin stigma (plural stigmata), from Greek stigma (genitive stigmatos) "mark of a pointed instrument, puncture, tattoo-mark, brand," from root of stizein "to mark, tattoo," from PIE root *steig- "to stick; pointed" (see stick (v.)).

Figurative meaning "a mark of disgrace" in English is from 1610s. Stigmas "marks resembling the wounds on the body of Christ, appearing supernaturally on the bodies of the devout" is from 1630s; earlier stigmate (late 14c.), from Latin stigmata.