insulate
v.
1530s, "make into an island," from Latin insulatus, from insula (see insular). Sense of "cause a person or thing to be detached from surroundings" is from 1785. Electrical/chemical sense of "block from electricity or heat" is from 1742. Related: Insulated; insulating.
〔李〕[insul;-atev.] v.隔离 n.隔离； 孤立 ←insul (L insula)=island 岛
〔蒋〕[insul岛→孤立→与外界隔绝，-ate动词后缀，使…;’使成岛状”→使孤立，使与…隔绝] 隔离，使孤立，使绝缘