They really aren't worth much. In that one isn't even registered, the vote here is less than $6.95. Past tense words are seldom worth anything. Even in .COM, common words like 'Radioed' or even 'auctioned' are worth, maybe, only a very few hundred, if that. 'ings' are bad too but sometimes they are pretty good. Collector or collection are much better that collecting. Collected probably has some minor value as in 'calm and collected', I suspose.
As to these words, I don't know what your content is. Anything promoted enough will work if it has great content but a good, commonly searched for name will help you a lot. If you aren't rich, don't forget that extensions other than .COM resolve just fine in browsers and a good, generic term will help greatly with search engine placement regardless of the extension. While 'solemn' probably wouldn't be my choice for a website, 'solemn' in anything would be better than these. BTW - 'solemn.biz' does seem to be available. .BIZ may not be the greatest sounding extension for this name but back to that generic and search engine stuff!
