Where does “zigilu” come from?

zigilu (Basque) comes from Proto-Basque *zigiLu, from Latin sigillum, from Latin -lus, from Proto-Italic -elos, from Proto-Indo-European -e-lós, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

zigilu (Basque): seal, sigil

Definitions

seal, sigil

Ancestry of “zigilu”, step by step

Step	Language	Word	Meaning
1	Proto-Basque	*zigiLu	—
2	Latin	sigillum	figurine, statuette; seal
3	Latin	-lus	Alternative form of -ulus; diminutive suffix
4	Proto-Italic	-elos	Forms desubstantival and deadjectival diminutive nouns
5	Proto-Indo-European	-e-lós	—
6	Proto-Indo-European	-lós	Forms agent nouns from verbal roots

Every word from Proto-Indo-European -lós →Every word from Latin -lus →Every word from Latin sigillum →