I placed this topic in "bug swatters," thinking it's a bug, but I'm more than happy if someone can show me whether I'm just doing something not quite right.
The Greek word in question is νομὸς, glossed by Accordance as
νομὸς νομός (νέμω) Noun masc sing nom field, pasture; Egyptian nome
and distinct from the much more common νόμος (only differentiated from the above by accent).
Accordance gets the word right in the instant details (see shot 1). But then when I hover over the word and press command--or amplify to LEH lexicon--νόμος comes up instead of νομὸς. As seen in the second screen shot, I scrolled to the second LEH entry (which did show up in the search results, even though it didn't automatically go to it) to make sure LEH actually has νομὸς, which it does.
So the natural thing would be for pushing command or triple-clicking or amplifying to go to νομὸς in LEH, but instead it goes to νόμος, even though the ID have it right.