Where does “terrae tremor” come from?

terrae tremor (Latin) comes from Latin tremor, from Latin tremō, from Proto-Italic tremō, from Proto-Indo-European trem-, from Proto-Indo-European ter-, from Italian termine, from Latin terminus, from Proto-Italic termenos — boundary, end.

Ancestry of “terrae tremor”, step by step

terrae tremor traces back through two separate lines of ancestry.

via Latin tremor

StepLanguageWordMeaning
1Latintremortrembling, quaking, tremor; first-person singular...
2Latintremōto tremble, shake, shudder at
3Proto-Italictremō
4Proto-Indo-Europeantrem-to tremble
5Proto-Indo-Europeanter-tender, weak; young creature
6Italiantermineend, close; limit, term, date, time; term, word
7Latinterminusa boundary, limit, end
8Proto-Italictermenos
9Proto-Indo-Europeantérmn̥boundary, end

via Latin Terra

StepLanguageWordMeaning
1LatinTerraTerra goddess of the Earth
2Proto-Indo-Europeanters-dry
Every word from Proto-Indo-European térmn̥
terrae tremor — Etymology, Origin & Word History | Etymology Explorer