Uncertain. Akk.-Ugr. *tbˁ ‘to set out, to depart’ is probably related to Arb. tbˁ ‘to follow’, but the semantic gap underlying this comparison contrasts sharply with the virtual semantic identity between Akkadian and Ugaritc.
Akkadian
tebû - to get up, to rise; to set out, to depart, to leave
(CAD T 306, AHw. 1342)