Where does “piojoso” come from?

piojoso (Spanish) comes from Spanish piojo, from Latin peduclus, from Latin peduculus, from Latin pedīculus, from Latin pēdis, from Latin pēs, from Ancient Greek μέτρον, from Ancient Greek -τρον — Derives agent nouns from verbs, denoting someone...

piojoso (Spanish): lousy

Definitions

lousy

Ancestry of “piojoso”, step by step

piojoso traces back through two separate lines of ancestry.

via Spanish piojo

Step	Language	Word	Meaning
1	Spanish	piojo	a louse, a cootie
2	Latin	peduclus	Alternative form of pēduculus
3	Latin	peduculus	Alternative form of pēdiculus; louse
4	Latin	pedīculus	A little foot
5	Latin	pēdis	louse
6	Latin	pēs	a foot, in its senses as
7	Ancient Greek	μέτρον	something used to measure: measure, rule, weight;...
8	Ancient Greek	-τρον	Forms instrument nouns
9	Proto-Hellenic	-tron	Forms instrument nouns from verb stems
10	Proto-Indo-European	-trom	Forms nouns denoting a tool or instrument
11	Proto-Indo-European	-tḗr	Derives agent nouns from verbs, denoting someone...

via Latin peduculōsus

Step	Language	Word	Meaning
1	Latin	peduculōsus	lousy; full of lice
2	Latin	pēdīculōsus	lousy; full of lice
3	Latin	-ōsus	ose, -ous, -ful (full of or overly prone to)
4	Old Latin	-ōssus	—

Every word from Proto-Indo-European -tḗr →Every word from Ancient Greek -τρον →Every word from Ancient Greek μέτρον →