The Hebrew and Greek that is translated in English as “frankincense” is translated in Lokạạ as ebạạm yạ insẹnsii or “sap of incense.” (Source: J.A. Naudé, C.L. Miller Naudé, J.O. Obono in Acta Theologica 43/2, 2023, p. 129ff. )
Frankincense Boswellia sacra is a yellow or reddish gum produced by one of the fifteen aromatic species of Boswellia. It was probably imported into Israel from Arabia, Africa, or Asia. Egyptian pictorial records indicate that Queen Hatshepsut travelled to a place called “Punt” (possibly Somalia or even India) and brought back specimens that look like Boswellia trees, planting them in her palace garden. Some people call frankincense olibanum (a Middle Eastern word meaning “incense”), but it is possible that olibanum may properly refer only to Boswellia serrata from India, which has a lemon/lime smell as opposed to the orange smell of true frankincense.
Today the best frankincense is reputed to come from Oman, but Yemen and Somalia also produce a lot of it. The name olibanum may come from the Arabic al-lubán (milk) or from the equivalent of “oil of Lebanon.” The Hebrew word levonah can mean either “white” or “Lebanese.”
Boswellia trees are actually shrubs reaching 3 meters (10 feet) in height, with multiple trunks coming from the ground. They have pinnate leaves and small greenish or white flowers. The gum of Boswellia trees comes out by itself in little drops from the branches and twigs, but it can also be extracted by cutting through the bark of the trunk. The resin appears in globs and hardens.
Frankincense was an ingredient of the incense burned in the Tabernacle of ancient Israel, and it was prescribed as part of their cereal offerings.
A classifier will be useful if available (for example, “resin of”). Transliterations of the word for frankincense from Hebrew (labona, lebonahi), Greek (libano), French (bosweli, olibán), or Arabic (akor, mager, mogar) will be more readable than those from English (firankinsensi).
Source: Each According to its Kind: Plants and Trees in the Bible (UBS Helps for Translators)