Where does “Mastrocola” come from?

Mastrocola (English) comes from Italian Mastrocola, from Italian colà, from Italian Nicola, from Latin Nīcolāus, from Ancient Greek Νικόλαος, from Ancient Greek λᾱός, from Proto-Hellenic lāwós, from Proto-Indo-European leh₂wos — to bark, howl; to be concealed.

Ancestry of “Mastrocola”, step by step

Step	Language	Word	Meaning
1	Italian	Mastrocola	—
2	Italian	colà	there
3	Italian	Nicola	—
4	Latin	Nīcolāus	—
5	Ancient Greek	Νικόλαος	Nicolas
6	Ancient Greek	λᾱός	people; men; the people
7	Proto-Hellenic	lāwós	people, crowd
8	Proto-Indo-European	leh₂wos	people
9	Proto-Indo-European	leh₂-	to bark, howl; to be concealed

Every word from Proto-Indo-European leh₂- →Every word from Proto-Indo-European leh₂wos →Every word from Proto-Hellenic lāwós →