Общая заметка: If *ju°gъ is cognate with Gk. aЩg» `light, beam' < *h2eug-, the acute tone of the root can be explained by Winter's law. On the other hand, this etmology also implies that the *j- was originally a glide, which considering the distribution of forms with and without *j- seems less likely. The ESSJa argues that *jugъ contains *iouЌ `mix, knead'. The original meaning would have been `soft', cf. -> sĕverъ, of the which the older meaning is assumed to have been `sharp, severe'. This all seems highly speculative.
Общая заметка: The fact that all in all the accentological evidence points to AP (b) is problematic in view of the laryngeal reflected by forms from other branches. If the root is identical with Skt. yu- `unite, attach, bind', we may reconstruct *ieu- alongside *ieuH, cf. Lith. jaґuti, jau~ti. In any case, Slavic has full grade, *ieu(H)-s- or *iou(H)-s-, against zero grade in Baltic.
Другие сближения: Skt. yіґs•- (RV+) `broth' [n]; Lat. iіs `broth' [n]
Примечания: {1} AP (b) is also attested in Древнерусский:: (Zaliznjak 1985: 135). {2} According to Jurišicґ, this form is a recent designation of čo~rba.
).