arbitrium

arbitrium lat.

From arbiter +‎ -ium.

Noun

arbitrium n (genitive arbitriī or arbitrī); second declension

1. the decision of an arbiter, arbitration
2. judgement, decision, opinion
3. discretion, liberal decision; arbitrary decision, whim
4. mastery, dominion, authority [ synonyms ▲]

   Synonyms: potestās, imperium, auctōritās, diciō

Declension

Second-declension noun (neuter).

Case	Singular	Plural
Nominative	arbitrium	arbitria
Genitive	arbitriī arbitrī1	arbitriōrum
Dative	arbitriō	arbitriīs
Accusative	arbitrium	arbitria
Ablative	arbitriō	arbitriīs
Vocative	arbitrium	arbitria

¹Found in older Latin (until the Augustan Age).