Where does “rachtán” come from?

rachtán (Irish) comes from Irish rachta, from Irish rafta, from English raft, from English raff, from Middle English raf, from Old French raffer — to wear away.

rachtán (Irish): chevron

Definitions

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Ancestry of “rachtán”, step by step

Step	Language	Word	Meaning
1	Irish	rachta	rafter, beam
2	Irish	rafta	raft
3	English	raft	A flat-bottomed craft able to float and drift on...
4	English	raff	A promiscuous heap; a jumble; a large quantity;...
5	Middle English	raf	Alternative form of reif
6	Old French	raffer	to wear away

Every word from Old French raffer →Every word from Middle English raf →Every word from English raff →