impregnable

adj

Etymology: PIE word *h₁én From impregnate (verb) + -able (suffix meaning ‘able or fit to be done’ forming adjectives). Impregnate is either derived from impregnate (“pregnant”, adjective), or from its etymon Medieval Latin or Late Latin impraegnātus (“made pregnant”), past participle of impraegnō (“to make pregnant”), from Latin im- (a variant of in- (prefix meaning ‘in, inside, within’)) + praegnāre (“pregnant”) (from praegnāns, a variant of praegnās (“pregnant”), from prae- (prefix meaning ‘before; in front’) + *gnāscor (archaic), nāscor (“to be born; to grow, spring forth; to arise, proceed”) (ultimately from Proto-Indo-European *ǵenh₁- (“to beget; to give birth; to produce”)).

1. Capable of being impregnated; impregnatable.

   “The reproductive strategies of troop members, especially those of impregnable females, are suggested to influence patterns of range use.”