I think that verb stems shouldn't end in a consonant cluster...
Gloss “oment-” by Eldamo Import created 1 miesiąc temu
oment-
verb. to meet
I agree, Eldamo (the original source for this entry) displays it like this:
So it's a old neologism from the NQ-Wiki (which had many problematic ideas) and Paul Strack recommends to use (practically) attested omen- instead (and I agree).
Eldamo records those old problematic neologisms so it can propose a better replacement. When Parf Edhellen imports Eldamo data it unfortunately ignores all deprications and words choice suggestions.
(small note: In Earley Qenya Tolkien has a few stem verbs ending in clusters especially with qu (=kw), so I wouldn't put it beyond Tolkien to have some verbs like this. However nothing safe for neologism formation IMO)
Those links are so hard to parse correctly. I'll see what I can do to fix this issue for the next import. Or I will simply go ahead and delete such problematic entries.