köken: From late Middle High German plotzlich, from Plotz (“clap, slap”) (onomatopoeic), originally adverb, since Luther also in adjectival use. By synchronic analysis, from an onomatopoeic element plotz (“sound of a quick impact or blow”) + -lich (“-like”). Cognate with Hunsrik pletzlich. Compare also Middle Low German plutzlik (> Danish pludselig, Swedish plötslig). Related to Early New High German…
aile: urplötzlich
Während der Fahrt ist der Motor plötzlich ausgegangen.
quickly, rapidly, promptly, fast · unexpectedly, out of the blue, abruptly, suddenly
köken: From Proto-Finnic *äkkidä, the partitive singular of *äkki. Cognates include Estonian äkki, Ingrian äkkii, Karelian äkkie, Veps äkkid and Votic äčči.
aile: yhtäkkiä
Nyt äkkiä tänne!
Tämä tuli kyllä vähän äkkiä, mutta totta kai minä suostun.