Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. attactus, a, um, Part. of attingo.
2. attactus, ūs, m. [attingo], a touching, touch (very rare, and only in abl. sing.): Corium attactu non asperum ac durum, Varr. R. R. 2, 5, 8: ille volvitur attactu nullo, Verg. A. 7, 350; Pall. 1, 35, 11.