PS

*luγ(γ)- - throat (SED I No. 176 )

Though attested scarcely and with meaning shifts, reliable enough to be separated from homonymous *lVγ- ‘jaw’ for semantic reasons.

There is a series of derived verbal forms with meanings connected with throat, most of which are likely to have developed independently in different languages. 

Akkadian
luˀu, luḫḫu - throat (CAD l 258, AHw 565)

Also metathetic maˀlātu [CAD m1 161; AHw 594] ‘trachea or uvula’ (with mV-prefix). Alternatively to be treated as derivatives from alātu/laˀātu ‘to swallow’.

Arabic
luγat- - word, phrase, language, idiom (BK 2 1007, WKAS II 911)

With a meaning shift from ‘throat’.