Words

Syriac
tḥet - below, under (LSyr. 821, SL 1637)
Syriac
tkel - to believe, to be sure (LSyr. 823)

ap. ‘to assure’, etpe. ‘to be trustworthy’ (LSyr. 823)

Syriac
tkālā - bereveament (LSyr. 823, SL 1644)
Syriac
tekltā - blue-purple colour (LSyr. 823)

Cannot be separated from Akk. takiltu ‘a blue-purple wooľ, Hbr. tǝkēlät ‘a blueish or violet coloured purple wooľ, JPA toklā ‘purple wooľ, CPA twklɁ ‘blue fabric’, JBA tǝkēltā ‘tekhelet color’. Their futher etymology is unknown. 

Syriac
tḳl - to suspend, weigh out, balance (LSyr. 831)
Syriac
tḳn - to establish properly (LSyr. 831)
Syriac
tellā - mound (LSyr. 824, SL 1646)
Syriac
talgā - snow (LSyr. 825, SL 1647)
Syriac
tlāṯ - three (LSyr. 826, SL 1651)
Syriac
tūmā - garlic (LSyr. 819, SL 1631)