tie

The noun comes from Middle English teye, meaning cord or chain, from Old English tēag/tēah, from Proto-West Germanic *taugu, from Proto-Germanic *taugō, tracing back to Proto-Indo-European *dewk-. The verb comes separately from Middle English teien, from Old English tīġan/tīeġan, ultimately from the same PIE root *dewk-, meaning 'to tug, draw.'

The word split early into two related forms: one for the cord itself (the noun) and one for the action of fastening with it (the verb), both growing from the same root sense of pulling or drawing something together.

It's cognate with Danish tov and Icelandic taug (both meaning cord or rope), and the verb form is cognate with Icelandic teygja.