Where does “unfossiliferous” come from?

unfossiliferous (English) comes from English fossiliferous, from English -ferous, from English -ous, from Middle English -ous, from Old French -us, from Latin -ōsus, from Old Latin -ōssus.

unfossiliferous (English): Not fossiliferous, nonfossiliferous

Definitions

  1. Not fossiliferous, nonfossiliferous

Ancestry of “unfossiliferous”, step by step

unfossiliferous traces back through two separate lines of ancestry.

via English fossiliferous

StepLanguageWordMeaning
1EnglishfossiliferousContaining fossils
2English-ferousUsed to form adjectives from nouns, producing the...
3English-ousUsed to form adjectives from nouns, to denote...
4Middle English-ous
5Old French-us-ous, used for forming adjectives
6Latin-ōsusose, -ous, -ful (full of or overly prone to)
7Old Latin-ōssus

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Old Latin -ōssusEvery word from Latin -ōsusEvery word from English -ous