Elusive
来自Big Physics
early 18th century: from Latin elus- ‘eluded’ (from the verb eludere ) + -ive.
wiktionary
From Latin elusus past participle of eludo(“to parry a blow, to deceive”)
etymonline
elusive (adj.)
"hard to grasp or confine," 1719, from Latin elus-, past-participle stem of eludere "elude, frustrate" (see elude) + -ive. Related: Elusiveness.