peninsula
n.
1530s, from Latin pæninsula "a peninsula," literally "almost an island," from pæne "almost" + insula "island" (see isle). Earlier translated as demie island.
〔李〕[pen-;insul;-an.] n.半岛 ←insul (L insula)=island 岛
〔李〕n.半岛 [insula=island] ←pen（e）-[GK] =almost几乎，近似
〔蒋〕[pen-相似，相近，似乎，insul岛，-a名词后缀;’和岛相似”，’似乎是一个岛”→不完全是一个岛] 半岛