ro-ro
n.— «The Kaholo is a roll-on/roll-off barge—”ro-ro,” in the parlance of maritime shipping—that is far easier to load and unload than if cars and trucks had to be hoisted on and off.» —“Young Brothers gets ro-ro barge” Pacific Business News (Honolulu, Hawaii) Mar. 8, 2007. (source: Double-Tongued Dictionary)
Further reading
The Hawaiian word aloha is both a greeting and a goodbye, as well as a profound acknowledgement of the oneness with all living things. Plus, what’s a lemur ball? A new book will leave you marveling over the mysteries of lemurs, wombats, and other...
After several weeks in Hawaii, a South Carolina listener returned curious about the terms aloha and aloha spirit. Founded on ideas of mutual respect among humans and in harmony with nature, the concept of the “Aloha spirit” is so fundamental to...
“Ro-ro” is in the OED2, cited from 1969.