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Uncertain. Traditionally suggested to be a compound of manus (hand) + turbāre (to unsettle, throw in to disorder), or a deformed compound of manus (hand) + stuprāre (to defile (the self)), from stuprum, with influence from turbāre. In that case the vowel a would be expected to be long and nasalized, via /mans.t-/, as in mōnstrum. Some suggest the first part to be an unattested meaning of mās (the male) as “penis” (see de Vaan).

Watkins has traced the root to a Proto-Indo-European *mostr̥gʰ-, extended and metathesised from *mosgʰos (marrow), also found in Avestan 𐬨𐬀𐬯𐬙𐬆𐬭𐬆𐬔𐬀𐬥(mastərəgan, brains) and Tocharian B mrestīwe (marrow). The semantic relationship is due to the widely attested belief that semen descends from the brain through the bones and is the same substance as brain matter and bone marrow; compare “the symbolic autofellatio of Finn mac Cumaill's gnawing his thumb to the marrow” and the obsolete meaning of marrow (semen).



masturbor (present infinitive masturbārī, perfect active masturbātus sum); first conjugation, deponent

  1. to masturbate


   Conjugation of masturbor (first conjugation, deponent)
indicative singular plural
first second third first second third
active present masturbor masturbāris,
masturbātur masturbāmur masturbāminī masturbantur
imperfect masturbābar masturbābāris,
masturbābātur masturbābāmur masturbābāminī masturbābantur
future masturbābor masturbāberis,
masturbābitur masturbābimur masturbābiminī masturbābuntur
perfect masturbātus + present active indicative of sum
pluperfect masturbātus + imperfect active indicative of sum
future perfect masturbātus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present masturber masturbēris,
masturbētur masturbēmur masturbēminī masturbentur
imperfect masturbārer masturbārēris,
masturbārētur masturbārēmur masturbārēminī masturbārentur
perfect masturbātus + present active subjunctive of sum
pluperfect masturbātus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present masturbāre masturbāminī
future masturbātor masturbātor masturbantor
non-finite forms active passive
present perfect future present perfect future
infinitives masturbārī masturbātum esse masturbātūrum esse
participles masturbāns masturbātus masturbātūrus masturbandus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
masturbandī masturbandō masturbandum masturbandō masturbātum masturbātū

Derived terms[edit]