PS

*ˁiṣ̂- - tree (Fronzaroli 1969a: 276, 290, 299; Kogan 2011: 199; Kogan 2015: 43)

Akkadian
iṣu - tree; timber, lumber, wood; aromatic wood; wooded area (CAD I 214, AHw. 390)
Ugaritic
ˁṣ - tree (DUL 186)
Hebrew
ˁēṣ - tree (HALOT 63)
Biblical Aramaic
ˀāˁā - wood (HALOT 1821; Kogan 2011: 199)
Arabic
ˁiḍḍ- - small thorny trees (Lane 2070)

Also ˁuḍḍ- ‘thick, large firewood’ (Lane 2070), ˁiḍāh- ‘any great trees having thorns’ (ibid. 2076).

Geez
ˁəṣ̂ - tree, shrub, bush; wood; stick, staff (of spear) (CDG 57)
Tigre
ˁəč̣č̣ät - tree (WTS 490)
Tigrinya
ˁənṣäyti - wood (TED 1897)
Amharic
ənč̣ät - wood (AED 1252)
Harari
inč̣i - wood (EDH 28)