出典:Wiktionary
From pusillanim(ous) + -ity, from Middle French pusillanimité, from the ecclesiastical Latin pusillanimis, from pusillus (puny) + animus (spirit) + -ous. A translation of the Greek ὀλιγόψυχος (oligópsukhos, “faint-hearted”).
pusillanimity (countable かつ uncountable, 複数形 pusillanimities)