*teks- Look up *teks- at Dictionary.com
Proto-Indo-European root meaning "to weave," also "to fabricate," especially with an ax," also "to make wicker or wattle fabric for (mud-covered) house walls."

It forms all or part of: architect; context; dachshund; polytechnic; pretext; subtle; technical; techno-; technology; tectonic; tete; text; textile; tiller (n.1) "stock of a crossbow;" tissue; toil (n.2) "net, snare."

It is the hypothetical source of *teks- "to weave, to fabricate, to make; make wicker or wattle framework" (source also of Sanskrit taksati "he fashions, constructs," taksan "carpenter;" Avestan taša "ax, hatchet," thwaxš- "be busy;" Old Persian taxš- "be active;" Latin texere "to weave, fabricate," tela "web, net, warp of a fabric;" Greek tekton "carpenter," tekhne "art;" Old Church Slavonic tesla "ax, hatchet;" Lithuanian tasau "to carve;" Old Irish tal "cooper's ax;" Old High German dahs, German Dachs "badger," literally "builder;" Hittite taksh- "to join, unite, build."