First Known Use: 1520
Dictionary
1per diem
adverb per di·em \(ˌ)pər-ˈdē-əm, -ˈdī-\
: for each day : per day
Full Definition of PER DIEM
: by the day : for each day
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Origin of PER DIEM
Medieval Latin
2per diem
adjective
Definition of PER DIEM
1
: based on use or service by the day : daily
2
: paid by the day
First Known Use of PER DIEM
1809
3per diem
noun
: an amount of money given to someone for daily expenses (such as food or fuel)
plural per diems
Full Definition of PER DIEM
1
: a daily allowance
2
: a daily fee
See per diem defined for English-language learners
First Known Use of PER DIEM
1812
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