Where does “sira” come from?

sira (Sicilian) comes from Late Latin sera, from Latin sēra, from Latin serō, from Latin sērus, from Proto-Italic swerjos, from Proto-Indo-European swer-yo-s, from Proto-Indo-European swer- — to ache; to fester; wound; injury.

sira (Sicilian): evening

Definitions

evening

Ancestry of “sira”, step by step

Step	Language	Word	Meaning
1	Late Latin	sera	a bar or bolt for fastening doors; nominative...
2	Latin	sēra	a bar or bolt for fastening doors
3	Latin	serō	to sow, plant
4	Latin	sērus	late, too late
5	Proto-Italic	swerjos	—
6	Proto-Indo-European	swer-yo-s	—
7	Proto-Indo-European	swer-	to ache; to fester; wound; injury

Every word from Proto-Indo-European swer- →Every word from Proto-Indo-European swer-yo-s →Every word from Proto-Italic swerjos →