PC

*tawk- - midst (Kogan 2015: 311)

A loanword from Hittite tuekka- ‘body, self’ has been surmised by Ch. Rabin (1963: 136‒137)

Ugaritic
tk - centre, middle; in, in the midst of; to, towards (DUL 867)
Phoenician
mtkt - midst (Krahmalkov 2000: 320)
Hebrew
tāwäk, tōk - midst, in the middle (HALOT 1697)