12th cent. From Vulgar Latin *tacca 'id.' Borrowed from a Germanic language with the structure *taik(k)- "sign" (cf. Gothic taikns "omen").
Derived from Proto-Germanic *taikna- "sign." Perhaps from a Proto-Indo-European root *dei̯ḱ- meaning "to show."
Catalan taca, Occitan taca, Italian tacca
Gothic taikns "omen," Old Norse teikn "sign," Old High German zeihhan "sign," Old Dutch teikan 'id.,' Old Saxon tēken 'id.,' Old Frisian tēken 'id.,' Old English tācn 'id.' (English token)
Ancient Greek δεικνῠ́ναι (deiknynai) "to point out"
Sanskrit diś "to point out"