Where does “sea orange” come from?

sea orange (English) comes from English Orange, from French Orange, from Spanish naranja, from Old Spanish naranja, from Arabic نَارَنْج, from Persian نارنگ, from Sanskrit नारङ्ग, from Dravidian dra — date palm.

sea orange (English): A sponge of the species Suberites ficus

Definitions

  1. A sponge of the species Suberites ficus

Ancestry of “sea orange”, step by step

sea orange traces back through two separate lines of ancestry.

via English Orange

StepLanguageWordMeaning
1EnglishOrangeRelating to the Orange Order
2FrenchOrangeOrange
3Spanishnaranjaorange; Pertaining to Ciudadanos, a Spanish...
4Old Spanishnaranjaorange
5Arabicنَارَنْجbitter orange
6Persianنارنگbitter orange
7Sanskritनारङ्गthe orange-tree; the juice of the pepper plant;...
8Dravidiandra
9Proto-Dravidian*cīntudate palm

via English sea

StepLanguageWordMeaning
1EnglishseaA large body of salt water; A lake, especially if...
2Middle Englishseesea, ocean; A body of water, a lake; seat, chair
3Old Englishsea, lake
4Proto-West Germanicsaiwisea
5Proto-Germanicsaiwizsea, ocean
6Proto-Germanicsīhwanąto filter
7Proto-Indo-Europeanseykʷ-to moisten; to filter
8Proto-Indo-Europeansey-to be wet; dribble; run; to stretch one's arm;...
Every word from Proto-Dravidian *cīntu