Words that come from Proto-Germanic hak(k)-

7 words across 4 languages descend from Proto-Germanic hak(k)- — including naaldhak, hak, kuhhackig, Hacke, hochhackig, hakke, hacke.

See the etymology of hak(k)- itself →

German (3)

Dutch (2)

Middle Low German (1)

Middle Dutch (1)