Where does “instructiveness” come from?

instructiveness (English) comes from English instructive, from English -ive, from Middle English -yf, from Old French -if, from Latin -īvus, from Proto-Indo-European -iHwós, from Proto-Indo-European -wós — Creates adjectives from verb stems.

instructiveness (English): The quality of being instructive

Definitions

  1. The quality of being instructive

Ancestry of “instructiveness”, step by step

instructiveness traces back through two separate lines of ancestry.

via English instructive

StepLanguageWordMeaning
1EnglishinstructiveConveying knowledge, information or instruction;...
2English-iveAn adjective suffix signifying relating or...
3Middle English-yfA suffix designating adjectives, adverbs and...
4Old French-if-ive
5Latin-īvusAdjective suffix
6Proto-Indo-European-iHwós
7Proto-Indo-European-wósCreates adjectives from verb stems

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European -wós