Albanian, all diphthongs had been lost: those ending in -i were all leveled, the -u was lost in those ending in -u, and those ending in -e were converted to glide + vowel sequences; further changes including the frequent effacement of the former first element or otherwise its hardening into an occlusive (typically /v/ for former u-, and gj /ɟ/ for former i-) rendering the former presence of a diphthong rather opaque in many reflexes. Diachronic development Note that this table differentiates short vowels form long vowels with the IPA symbol <ː> being applied to the long vowels. Specifically contextualized reflex results are placed in parentheses. Development of Indo-European sonorants The nasal sonorants *n̩ and *m̩ both rendered Early Proto-Albanian *a, which remains *a in modern Albanian (PIE *g'hn̩taː "goose" > EPA *gataː > modern Albanian gatë "heron"). Like EPA *a elsewhere, in some cases it was raised to *e, as seen in PIE *ln̩gwh- > EPA *laga > Albanian lehtë (suffixed with -të). Consonants Classification & isoglosses with other branches of Indo-European The closest language to Albanian is Messapic, with which it forms a common branch titled Illyric in Hyllested & Joseph (2022). Hyllested & Joseph (2022) in agreement with recent bibliography identify Greco-Phrygian as the IE branch closest to the Albanian-Messapic one. These two branches form an areal grouping - which is often called "Balkan IE" - with Armenian. Shortly after they had diverged from one another, Greek, Armenian, and partly Albanian undoubtedly also underwent a longer period of contact (as can be seen, for example, in the irregular correspondence: Greek σκόρ(ο)δον, Armenian sxtor, xstor, and Albanian hudhër, hurdhë "garlic"). Furthermore, intense Greek–Albanian contacts certainly occurred thereafter, and ongoing connections between them have been in the Balkans from the ancient times, continuing up to the present-days. Hyllested & Joseph (2022) identify the highest shared number of innovations between (Proto-)Albanian and (Proto-)Greek. A common Balkan Indo-European root *aiğ(i)- ("goat") can be reflected in Albanian edh ("goat, kid") < PAlb *aidza and dhi ("nanny goat) < PAlb *aidzijɑ̄ with Greek αἴξ ("goat", gen. αἰγός) and Armenian ayc ("(nanny) goat"). It has been noted that the Balkan IE root and all the alleged Balto-Slavic and Indo-Iranian roots with a meaning "goat" are likely to be not Proto-Indo-European, as they may all originate as independent and relatively early, post-PIE borrowings, from the substrate languages spoken by the sedentary farmers who were encountered