Where does “socruluță” come from?

socruluță (Romanian) comes from Romanian soacră, from Latin socra, from Latin socrus, from Latin socer, from Proto-Indo-European sweḱrúh₂, from Proto-Indo-European swéḱuros — father-in-law.

Ancestry of “socruluță”, step by step

Step	Language	Word	Meaning
1	Romanian	soacră	mother-in-law
2	Latin	socra	mother-in-law
3	Latin	socrus	mother-in-law
4	Latin	socer	father-in-law
5	Proto-Indo-European	sweḱrúh₂	mother-in-law
6	Proto-Indo-European	swéḱuros	father-in-law

Every word from Proto-Indo-European swéḱuros →Every word from Proto-Indo-European sweḱrúh₂ →Every word from Latin socer →