I use Ubuntu Mono font in xterm terminal and, to my regret, there are no glyphs for some useful unicode characters such as scissors (2702) or some superscript and subscript symbols. Fortunately, Monospace has these glyphs. Is there an opportunity to configure fallback font(s) to catch missing glyphs in xterm? If not, can I merge Ubuntu Mono and Monospace to one font? Nowadays, I have next configuration.
XTerm*faceName: Ubuntu Mono
XTerm*faceSize: 12
It seems separating faceName value with comma does not work.
Since patch #338 in late 2018, xterm supports TrueType fallback fonts. No change was needed to user's configuration.