Proto-Baltic: *ak-i- c., *ak-ā̂, *ak-a- c.
Meaning: eye
Lithuanian: akì-s `Auge, Masche, rundes Loch'; akà, ãka-s `Wuhne'
Lettish: acs (gen. -s, pl. gen. acu/aču) `Auge; Knospe, Öhr; offene, Wasser enthaltende Gruft im Morast', aka `Brunnen'
Old Prussian: ackis, ackins Augen V. 80