trimoda necessitas
noun
tri·mo·da ne·ces·si·tas
¦trīmədənə̇ˈsesəˌtas,
¦triməˌdäˌneˈkesəˌtäs
: the threefold burden or charge on Anglo-Saxon landholders of army service, repair of strongholds, and repair of bridges
Word History
Etymology
Medieval Latin, literally, necessity of three kinds
- on drugs
- on drums
- on duty
- on earth
- on easy street
- on edge
- on end
- on equal terms
- on even keel
- on every hand
- on everybody's lips
- on everyone's lips
- on everyone's/everybody's lips
- on exhibit
- on exhibition
- on faith
- on false pretenses
- on file
- on film
- on fire
- on firm footing
- on firm ground
- on firm ground/footing
- on first acquaintance
- on first-name terms