Where does “nanometrical” come from?

nanometrical (English) comes from English metrical, from New Latin metricus, from Latin metrum, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

Ancestry of “nanometrical”, step by step

nanometrical traces back through two separate lines of ancestry.

via English metrical

StepLanguageWordMeaning
1Englishmetricalrelating to poetic meter; having a regular...
2New Latinmetricuspertaining to the system based on the meter;...
3Latinmetruma measure
4Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
5Ancient Greek-τρονForms instrument nouns
6Proto-Hellenic-tronForms instrument nouns from verb stems
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English nano

StepLanguageWordMeaning
1EnglishnanoNanotechnology
2Englishnano-API; In the International System of Units and...
3Latinnānusdwarf
4Ancient Greekνᾶνοςdwarf
Every word from Proto-Indo-European -tḗr
nanometrical — Etymology, Origin & Word History | Etymology Explorer