pinetum

From Latin pīnētum (“pine grove”).

pinetum (plural pineta or pinetums)

1. An arboretum, or part of an arboretum or garden, devoted to growing conifers
   • 1838 February, “On the Formation of a Public Botanic Garden”, in The Gardener's Magazine and Register of Rural & Domestic Improvement:

     In the arrangement, of course, I should expect to see every hardy tree which could be collected in any part of the globe; and I even anticipate revelling in quercetums, fraxinetums, salicetums, pinetums, aceretums, &c.

• Pentium, numptie

From pīnus (“pine”) +‎ ētum (“grove”)

• (Classical) IPA^(key): /piːˈneː.tum/, [piːˈneːt̪ʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /piˈne.tum/, [piˈnɛːt̪um]

pīnētum n (genitive pīnētī); second declension

1. a pine wood, pine grove

Second-declension noun (neuter).

• Italian: pineta
• Occitan: pineda
  • → French: pinède
• → English: pinetum
• Sicilian: pinita

• “pinetum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “pinetum”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• pinetum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.