- (transitive, rare) To trust.
1892, Salisbury (marquesses of), Calendar of the manuscripts of the ... marquis of Salisbury:
- If he may come secretly hither, I think it were good he were heard, and "betrowed," as the Scottishman saith, as he shall give cause.
1992, University of London. Institute of Historical Research, University of London. Institute of Historical Research:
- [...] it is also clear that Burghley had viewed the visit with the expectation that Standen could thereby be 'betrowed', his real loyalty tested out.