From Proto-Italic *medēōr, from Proto-Indo-European *med- (“to measure, give advice, heal”). Compare Avestan 𐬬𐬍-𐬨𐬀𐬛 (vī-mad), Old Persian (azdā), Old Armenian միտ (mit), Old Irish midiur, Gothic 𐌼𐌹𐍄𐌰𐌸𐍃 (mitaþs), Ancient Greek μέδομαι (médomai), German Maut.
medeor (present infinitive medērī); second conjugation, deponent, no perfect or supine stem
| Conjugation of medeor (second conjugation, no supine stem, deponent, no perfect stem) | |||||||
|---|---|---|---|---|---|---|---|
| indicative | singular | plural | |||||
| first | second | third | first | second | third | ||
| active | present | medeor | medēris, medēre |
medētur | medēmur | medēminī | medentur |
| imperfect | medēbar | medēbāris, medēbāre |
medēbātur | medēbāmur | medēbāminī | medēbantur | |
| future | medēbor | medēberis, medēbere |
medēbitur | medēbimur | medēbiminī | medēbuntur | |
| subjunctive | singular | plural | |||||
| first | second | third | first | second | third | ||
| active | present | medear | medeāris, medeāre |
medeātur | medeāmur | medeāminī | medeantur |
| imperfect | medērer | medērēris, medērēre |
medērētur | medērēmur | medērēminī | medērentur | |
| imperative | singular | plural | |||||
| first | second | third | first | second | third | ||
| active | present | — | medēre | — | — | medēminī | — |
| future | — | medētor | medētor | — | — | medentor | |
| non-finite forms | active | passive | |||||
| present | perfect | future | present | perfect | future | ||
| infinitives | medērī | — | — | — | — | — | |
| participles | medēns | — | — | — | — | medendus | |
| verbal nouns | gerund | supine | |||||
| genitive | dative | accusative | ablative | accusative | ablative | ||
| medendī | medendō | medendum | medendō | — | — | ||