Relating to or belonging to the arum family (Araceae); having characteristics of plants in this family.
From arum plus the suffix -aceous (meaning 'of the nature of' or 'belonging to'). Used in botanical classification since the 18th century.
When botanists add -aceous to a plant name, they're creating a family resemblance term—it's like saying 'having the quality of being an arum'!
Complete word intelligence in one call. Free tier — 50 lookups/day.