luukuttaa (Finnish) comes from Finnish luukku, from Swedish lucka, from Slovak lúka, from Proto-Slavic lǫka, from Proto-Balto-Slavic lankāˀ, from Proto-Indo-European lengʷʰ- — light, agile, nimble; light, not heavy, agile,...
luukuttaa (Finnish): to drive at full revs, to rev