From beyond, from the other side, i. e. without influence or assistance from this side (cf. sponte, whose opposite is external compulsion or aid: ultro facio, non rogatus; sponte facio, non coactus neque adjutus; hence, ultro is esp. freq. with verbs of giving, offering, proposing, approaching, assailing, etc.), on his part , on their part , of himself , of themselves , etc.; of one's own accord , without being asked , spontaneously , voluntarily: Gn. Jam haec tibi aderit supplicans Ultro. Thr. Credin'? Gn. .
http://lila-erc.eu/data/lexicalResources/LewisShort/id/LexicalSense/n49670.6 an entity of type: LexicalSense
From beyond, from the other side, i. e. without influence or assistance from this side (cf. sponte, whose opposite is external compulsion or aid: ultro facio, non rogatus; sponte facio, non coactus neque adjutus; hence, ultro is esp. freq. with verbs of giving, offering, proposing, approaching, assailing, etc.), on his part , on their part , of himself , of themselves , etc.; of one's own accord , without being asked , spontaneously , voluntarily: Gn. Jam haec tibi aderit supplicans Ultro. Thr. Credin'? Gn. .
From beyond, from the other side, i. e. without influence or assistance from this side (cf. sponte, whose opposite is external compulsion or aid: ultro facio, non rogatus; sponte facio, non coactus neque adjutus; hence, ultro is esp. freq. with verbs of giving, offering, proposing, approaching, assailing, etc.), on his part , on their part , of himself , of themselves , etc.; of one's own accord , without being asked , spontaneously , voluntarily: Gn. Jam haec tibi aderit supplicans Ultro. Thr. Credin'? Gn. .