Taxonomic history:
   1753: Linnaeus described this species as Piper malamiris in Species Plantarum, 1st ed., p. 29.
   today: The current name for this species is Piper betle L.

original Latin diagnosis
Piper foliis ovatis acutiusculis subtus scabris: nervis quinque subtus elevatis.

English translation
Piper with leaf blades ovate, slightly acute, [and] below scabrous, with the veins five [and] below raised.

English translation with commentary

Piper	Piper
with leaf blades	foliis - ablative plural of second declension neuter noun folium, -i
ovate,	ovatis - ablative plural neuter of group A adjective ovatus, -a, -um; modifies foliis
slightly acute,	acutiusculis - ablative plural neuter of group A adjective acutiusculus, -a, -um; modifies foliis
[and]	[added for smoother reading]
below	subtus - adverb
scabrous,	scabris - ablative plural neuter of group A adjective scabrus, -a, -um); modifies foliis
with the veins	nervis - ablative plural of second declension masculine noun nervus, -i
five	quinque - adjective (indeclinable); modifies nervis
[and]	[added for smoother reading]
raised.	elevatis - perfect passive participle, ablative plural masculine of first conjugation verb elevo, -are, -avi, -atum); modifies nervis