JLAtg, LJLA C both אֹוטֵיב and אֵיטִיב (for which see s.v. ṭwb vb.!; PTA occasional Hebraizing form: היטיב

See also s.v. ṭyb adj.
ṭwb vb. Tal takes the T-stem to be Gt in Samaritan, but there seems to be no certain evidence. We suspect Dt makes better sense of the examples.
The Ct Syriac example is treated here by Sok/LS², but should be seen rather as if from ˀṭb, i.e., the alternate form of the C stem of ṭˀb.