simple past tense and past participle of unfeudalize

(grammar) A word or clause that qualifies another word or clause ambiguously, possibly causing confusion with regard to the intended meaning.

A jumping plant louse of the family Psyllidae, of many species.

The decade of the 1850s, 1950s, etc. / The decade of one's life from age 50 through age 59. / (temperature, rates, plural only) The range between 50 and 59.