Alm, Ulmus glabra, is ‘elm’. Alm and elm have roots back to a Germanic *elmaz, the same tree as Latin ulmus, all back to an Indoeuropean root, also with a shoot giving name to another tree: Swedish al , English alder, Latina alnus. The Indoeuropean root *el- should mean ‘red’ or ‘reddish brown’, which anybody who has seen an alder stump would understand. Another word with the same origin is älg, elk .
This young elm flowering near the path is probably the child of the big one on my neighbour’s lawn. Both look healthy and fortunately they probably grow too far from other elms for the awful Dutch elm disease to reach them.
Oh yes, the Latin adjectiv glaber, glabra, glabrum, means 'smooth', 'shiny' Probably because of the leaves.
I found a much better picture of the leaves here: http://rubensrabatter.blogspot.se/2009/05/kastanj-lonn-och-alm.html.