Where does “sekaĵo” come from?

sekaĵo (Esperanto) comes from Esperanto seka, from French sec, from Old French sec, from Latin siccus, from Proto-Celtic siskʷos, from Proto-Indo-European sisku-.

sekaĵo (Esperanto): singular of dry goods

Definitions

singular of dry goods

Ancestry of “sekaĵo”, step by step

Step	Language	Word	Meaning
1	Esperanto	seka	dry
2	French	sec	dry; dried, having had its moisture evaporated;...
3	Old French	sec	dry
4	Latin	siccus	dry; sober; thirsty
5	Proto-Celtic	siskʷos	dry
6	Proto-Indo-European	sisku-	—

Every word from Proto-Indo-European sisku- →Every word from Proto-Celtic siskʷos →Every word from Latin siccus →