I will grant that if your website appeals to a nostalgic or retro audience, you might be able to get away with certain turns of phrase. Websites focusing on steampunk, old bands, the 1960s and related topics can use older terms to good effect. Those are specialty sites, however. If your target audience lives in the twenty-first century, however – with all of the appropriate trappings – then you’d better make sure you’re speaking their language. There are a lot of good reasons to make sure your keywords are up to date. Language changes over time, with new words entering the vocabulary and older…