expando

English

Etymology

Perhaps a short form of expandable object.

Pronunciation

• Audio (UK)

  (file)

• Rhymes: -ændəʊ

Noun

expando (plural expandos)

1. (programming) A property added to an object at run-time.
   • 2009, Ted Pattison, Daniel Larson, Inside Microsoft Windows Sharepoint Services 3.0

     Because JavaScript objects are not constrained to predefined interfaces as they are with .NET objects, you can set expando properties on any object.

   • 2010, Alexei White, JavaScript Programmer's Reference

     I talk more about expandos in Chapter 10. This means that you can arbitrarily add new properties to an object whenever you want.

See also

• duck typing

Latin

Etymology

From ex- (“out”) +‎ pandō (“spread”).

Pronunciation

• (Classical) IPA^(key): /ekˈspan.doː/, [ɛkˈs̠pän̪d̪oː]
• (Ecclesiastical) IPA^(key): /ekˈspan.do/, [ekˈspän̪d̪o]

Verb

expandō (present infinitive expandere, perfect active expandī, supine expānsum); third conjugation

1. I spread out
2. I expand
3. I explain

Conjugation

Conjugation of expandō (third conjugation)
indicative		singular			plural
		first	second	third	first	second	third
active	present	expandō	expandis	expandit	expandimus	expanditis	expandunt
	imperfect	expandēbam	expandēbās	expandēbat	expandēbāmus	expandēbātis	expandēbant
	future	expandam	expandēs	expandet	expandēmus	expandētis	expandent
	perfect	expandī	expandistī	expandit	expandimus	expandistis	expandērunt, expandēre
	pluperfect	expanderam	expanderās	expanderat	expanderāmus	expanderātis	expanderant
	future perfect	expanderō	expanderis	expanderit	expanderimus	expanderitis	expanderint
passive	present	expandor	expanderis, expandere	expanditur	expandimur	expandiminī	expanduntur
	imperfect	expandēbar	expandēbāris, expandēbāre	expandēbātur	expandēbāmur	expandēbāminī	expandēbantur
	future	expandar	expandēris, expandēre	expandētur	expandēmur	expandēminī	expandentur
	perfect	expānsus + present active indicative of sum
	pluperfect	expānsus + imperfect active indicative of sum
	future perfect	expānsus + future active indicative of sum
subjunctive		singular			plural
		first	second	third	first	second	third
active	present	expandam	expandās	expandat	expandāmus	expandātis	expandant
	imperfect	expanderem	expanderēs	expanderet	expanderēmus	expanderētis	expanderent
	perfect	expanderim	expanderīs	expanderit	expanderīmus	expanderītis	expanderint
	pluperfect	expandissem	expandissēs	expandisset	expandissēmus	expandissētis	expandissent
passive	present	expandar	expandāris, expandāre	expandātur	expandāmur	expandāminī	expandantur
	imperfect	expanderer	expanderēris, expanderēre	expanderētur	expanderēmur	expanderēminī	expanderentur
	perfect	expānsus + present active subjunctive of sum
	pluperfect	expānsus + imperfect active subjunctive of sum
imperative		singular			plural
		first	second	third	first	second	third
active	present	—	expande	—	—	expandite	—
	future	—	expanditō	expanditō	—	expanditōte	expanduntō
passive	present	—	expandere	—	—	expandiminī	—
	future	—	expanditor	expanditor	—	—	expanduntor
non-finite forms		active			passive
		present	perfect	future	present	perfect	future
infinitives		expandere	expandisse	expānsūrum esse	expandī	expānsum esse	expānsum īrī
participles		expandēns	—	expānsūrus	—	expānsus	expandendus, expandundus
verbal nouns		gerund				supine
		genitive	dative	accusative	ablative	accusative	ablative
		expandendī	expandendō	expandendum	expandendō	expānsum	expānsū

• expānsum is sometimes expassum

Descendants

• Asturian: espander

• Catalan: esbandir; → expandir
• Corsican: spande
• Friulian: spand
• → Galician: expandir
• Italian: spandere; → espandere
• Ligurian: espànde
• Navarro-Aragonese: espandir
• Occitan: espandir
• → Old French: espandre
  • Anglo-Norman: espaundre
    • → Middle English: spawnen
      • English: spawn
    • → Middle English: expand (influenced by Latin)
      • English: expand
  • Bourguignon: épandre
  • Middle French: espandre, espaundre
    • French: épandre
• Old French: espancier (from a root *expandicāre)
  • Bourguignon: répainché
  • French: épancher
• Old Spanish: espandir
• Piedmontese: espande
• → Portuguese: expandir
• Sicilian: spànniri
• → Spanish: expandir
• Venetian: spànder, spàndar

References

• “expando”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• expando in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette

Portuguese

Pronunciation

• Rhymes: -ɐ̃du

Verb

expando

1. first-person singular present indicative of expandir

Spanish

Verb

expando

1. first-person singular present indicative of expandir