Where does “ultrasensitivity” come from?

ultrasensitivity (English) comes from English sensitivity, from English sensitive, from Middle French sensitif, from Medieval Latin sensitivus, from Latin sentio, from Proto-Italic sentjō, from Proto-Indo-European sent-, from Proto-Indo-European h₁es- — to be.

ultrasensitivity (English): The quality of being ultrasensitive

Definitions

  1. The quality of being ultrasensitive

Ancestry of “ultrasensitivity”, step by step

ultrasensitivity traces back through two separate lines of ancestry.

via English sensitivity

StepLanguageWordMeaning
1EnglishsensitivityThe quality or state of being sensitive;...
2EnglishsensitiveHaving the faculty of sensation; pertaining to...
3Middle Frenchsensitif
4Medieval Latinsensitivussensitive; detectable, perceivable
5LatinsentioI feel, I sense, I perceive; I perceive, I am...
6Proto-Italicsentjō
7Proto-Indo-Europeansent-to head for, to go, to travel; to feel
8Proto-Indo-Europeanh₁es-to be

via English ultra

StepLanguageWordMeaning
1EnglishultraExtreme; far beyond the norm; fanatical;...
2Latinultrābeyond
3Latin-asuffixed to the roots of verbs, forms agent...
4Proto-ItalicForms masculine agent nouns from prefixed or compounded bases
5Proto-Indo-European-éh₂
Every word from Proto-Indo-European h₁es-Every word from Proto-Indo-European sent-Every word from Proto-Italic sentjō