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From Proto-Italic *ruðēō, from Proto-Indo-European *h₁rudʰéh₁ti (to be red), from the root *h₁rewdʰ- (red).



rubeō (present infinitive rubēre, perfect active rubuī); second conjugation, no passive, no supine stem

  1. I am red or ruddy.
    1. (of persons) I am blushing (as a sign of shame, modesty, or joy)

Usage notes[edit]

  • This verb is stative and serves to express a state. Its inchoative pair, rubēscō, serves to express change of state. They share the same third principal part (used in the perfectum tenses).


   Conjugation of rubeō (second conjugation, no supine stem, only third-person forms in passive)
indicative singular plural
first second third first second third
active present rubeō rubēs rubet rubēmus rubētis rubent
imperfect rubēbam rubēbās rubēbat rubēbāmus rubēbātis rubēbant
future rubēbō rubēbis rubēbit rubēbimus rubēbitis rubēbunt
perfect rubuī rubuistī rubuit rubuimus rubuistis rubuērunt,
pluperfect rubueram rubuerās rubuerat rubuerāmus rubuerātis rubuerant
future perfect rubuerō rubueris rubuerit rubuerimus rubueritis rubuerint
passive present rubētur rubentur
imperfect rubēbātur rubēbantur
future rubēbitur rubēbuntur
subjunctive singular plural
first second third first second third
active present rubeam rubeās rubeat rubeāmus rubeātis rubeant
imperfect rubērem rubērēs rubēret rubērēmus rubērētis rubērent
perfect rubuerim rubuerīs rubuerit rubuerīmus rubuerītis rubuerint
pluperfect rubuissem rubuissēs rubuisset rubuissēmus rubuissētis rubuissent
passive present rubeātur rubeantur
imperfect rubērētur rubērentur
imperative singular plural
first second third first second third
active present rubē rubēte
future rubētō rubētō rubētōte rubentō
non-finite forms active passive
present perfect future present perfect future
infinitives rubēre rubuisse rubērī
participles rubēns rubendus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
rubendī rubendō rubendum rubendō

Derived terms[edit]

Related terms[edit]