Where does “rullalätkä” come from?

rullalätkä (Finnish) comes from Finnish rulla, from Swedish rulla, from Old Swedish rolla, from Old French röeler, from Medieval Latin rotulo, from Latin rotula, from Arabic رَطْل, from Classical Syriac ܪܝܛܠܐ — ingot.

Ancestry of “rullalätkä”, step by step

rullalätkä traces back through two separate lines of ancestry.

via Finnish rulla

StepLanguageWordMeaning
1Finnishrullaroll; roller, as in "roller skates"; reel, as in...
2Swedishrullaroll; an official or public document; a register;...
3Old Swedishrolla
4Old Frenchröelerto roll
5Medieval Latinrotulodative singular of rotulus; ablative singular of...
6Latinrotulaa small wheel; roll
7Arabicرَطْل
8Classical Syriacܪܝܛܠܐ
9Classical Syriacܠܝܛܪܐlibra, pound
10Frenchlitrelitre
11Medieval Latinlitra
12Ancient Greekλίτραlitra, a Sicilian silver coin; libra, a unit of...
13Proto-Italic*līðrāingot

via Finnish lätkä

StepLanguageWordMeaning
1Finnishlätkäany relatively flat and small object
2FinnishlätkiäPartitive plural form of lätkä; To slap
3Finnish-iäy forms abstract nouns from Latin or Greek roots
4Latin-iaUsed to form a feminine abstract noun, usually...
5Latin-iusforming adjectives from nouns; nominative neuter...
6Proto-Italic-jōsForms comparative adjectives
7Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Italic *līðrāEvery word from Ancient Greek λίτραEvery word from Medieval Latin litra