Where does “luotsikirja” come from?

luotsikirja (Finnish) comes from Finnish luotsi, from Middle Low German lots, from Middle English lodesman, from Old English lādmann, from Old English lād, from Proto-West Germanic *laidu, from Proto-Germanic laidō, from Proto-Indo-European leyt- — to leave, let; to want, desire; to let; leave...

luotsikirja (Finnish): pilot book, pilot certificate, branch

Definitions

  1. pilot book, pilot certificate, branch

Ancestry of “luotsikirja”, step by step

luotsikirja traces back through two separate lines of ancestry.

via Finnish luotsi

StepLanguageWordMeaning
1Finnishluotsipilot person who helps navigate the harbor or coast
2Middle Low Germanlots
3Middle Englishlodesmanpilot
4Old Englishlādmannguide; a leader, guide
5Old Englishlādcourse, journey; way, street, waterway; leading,...
6Proto-West Germanic*laidu
7Proto-Germaniclaidōa leading; a way, course, route, direction
8Proto-Indo-Europeanleyt-to scratch; to leave, die; to go, go forth, die
9Proto-Indo-Europeanlēy-to leave, let; to want, desire; to let; leave...

via Finnish kirja

StepLanguageWordMeaning
1Finnishkirjabook; quire
2Proto-Finnickirjadecoration, carving, pattern
Every word from Proto-Indo-European lēy-Every word from Proto-Indo-European leyt-Every word from Proto-Germanic laidō