Where does “rithimm” come from?

rithimm (Middle Irish) comes from Latin rhythmus, from Ancient Greek ῥυθμός, from Ancient Greek ῥέω, from Proto-Indo-European srew-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

Ancestry of “rithimm”, step by step

Step	Language	Word	Meaning
1	Latin	rhythmus	rhythm
2	Ancient Greek	ῥυθμός	a repeating, regular motion, vibration; measured...
3	Ancient Greek	ῥέω	I flow, stream, run, gush; I let flow, pour; I...
4	Proto-Indo-European	srew-	to flow, stream
5	Proto-Indo-European	ser-	to flow; to guard; to bind, to tie together

Words derived from “rithimm”

rithim

Every word from Proto-Indo-European ser- →Every word from Proto-Indo-European srew- →Every word from Ancient Greek ῥέω →