Where does “hakkeroiminen” come from?

hakkeroiminen (Finnish) comes from Finnish hakkeroida, from Finnish hakkeri, from English hacker, from English hack, from English hackysack, from English hackeysack, from English sack, from Middle English sak — sack; sackcloth; sackcloth vestment, penitential...

Ancestry of “hakkeroiminen”, step by step

StepLanguageWordMeaning
1Finnishhakkeroidato hack
2Finnishhakkerihacker, an advanced hobbyist of computer...
3EnglishhackerOne who is expert at programming and solving...
4EnglishhackTo chop or cut down in a rough manner; To cough...
5EnglishhackysackAlternative form of hackeysack
6EnglishhackeysackA non-competition sport in which a small sack, or...
7EnglishsackA bag; especially a large bag of strong, coarse...
8Middle Englishsakbag, sackcloth
9Old Englishsaccsack, bag
10Old Englishsæccbattle, strife, fighting
11Proto-West Germanicsakkusack, bag
12Proto-Germanicsakkuzsack, bag, purse
13Latinsaccussack, bag; purse, wallet, moneybag; garment of...
14Ancient Greekσάκκοςsack; sackcloth; sackcloth vestment, penitential...
Every word from Ancient Greek σάκκοςEvery word from Latin saccusEvery word from Proto-Germanic sakkuz