intersum

Latin

Etymology

inter- +‎ sum

Pronunciation

• (Classical Latin) IPA^(key): [ɪnˈtɛr.sũː]
• (modern Italianate Ecclesiastical) IPA^(key): [inˈtɛr.sum]

Verb

intersum (present infinitive interesse, perfect active interfuī, future active participle interfutūrus); irregular conjugation, suppletive, no passive, no supine stem except in the future active participle, no gerund

1. to be or lie between
2. to be apart
3. to differ
   • 161 BCE, Publius Terentius Afer, Eunuchus 232–233:

     Dī immortālēs, hominī homō quid praestat! Stultō intellegēns, / quid interest!

     Immortal gods, from man to man, how superior is [one to another]! From a fool to a wise [person], what a difference there is!

4. to be present, attend (+ dative), take part
5. (impersonal) to make a difference; to concern; to matter

Conjugation

   Conjugation of intersum (irregular conjugation, suppletive, no passive, no supine stem except in the future active participle, no gerund)

indicative		singular						plural
		first		second		third		first		second		third
active	present	intersum		interes		interest		intersumus		interestis		intersunt
	imperfect	intereram		intererās		intererat		intererāmus		intererātis		intererant
	future	intererō		intereris, interere		intererit		intererimus		intereritis		intererunt
	perfect	interfuī		interfuistī		interfuit		interfuimus		interfuistis		interfuērunt, interfuēre
	pluperfect	interfueram		interfuerās		interfuerat		interfuerāmus		interfuerātis		interfuerant
	future perfect	interfuerō		interfueris		interfuerit		interfuerimus		interfueritis		interfuerint
subjunctive		singular						plural
		first		second		third		first		second		third
active	present	intersim, intersiem, interfuam1		intersīs, intersiēs, interfuās1		intersit, intersiet, interfuat1		intersīmus, intersiēmus, interfuāmus1		intersītis, intersiētis, interfuātis1		intersint, intersient, interfuant1
	imperfect	interessem, interforem		interessēs, interforēs		interesset, interforet		interessēmus, interforēmus		interessētis, interforētis		interessent, interforent
	perfect	interfuerim		interfuerīs		interfuerit		interfuerīmus		interfuerītis		interfuerint
	pluperfect	interfuissem		interfuissēs		interfuisset		interfuissēmus		interfuissētis		interfuissent
imperative		singular						plural
		first		second		third		first		second		third
active	present	—		interes		—		—		intereste		—
	future	—		interestō		interestō		—		interestōte		intersuntō
non-finite forms		infinitive						participle
		active			passive			active			passive
present		interesse			—			—			—
future		interfutūrum esse, interfore			—			interfutūrus			—
perfect		interfuisse			—			—			—
perfect potential		interfutūrum fuisse			—			—			—

¹Old Latin or in poetry.

Descendants

• Aromanian: intires
• English: interest
• Dutch: interesse
• French: intérêt
• Italian: interesse
• Spanish: interés
• Romanian: interes
• Portuguese: interesse
• Russian: интерес (interes)

References

• “intersum”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “intersum”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• “intersum”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• Carl Meißner; Henry William Auden (1894), Latin Phrase-Book‎^[1], London: Macmillan and Co.
  • to be present at secret consultations: consiliis arcanis interesse (Liv. 35. 18)
    
  • to attend lectures: scholis interesse
    
  • to take part in divine service (of the priest): rebus divinis interesse (B. G. 6. 13)
    
  • to take part in the engagement: proelio interesse