Not to belabor the point (well, ...) but yes, precisely.
There are two other related points. First, that unlike the "standard" adjectival forms (e.g., rainy, messy), these suffixes do not maintain the meaning but vary it some. And second, "-y" (and more commonly "-ie") can also be employed in the reverse: to make an adjective into a noun (e.g., lovey, meanie).
Now back to the theatre and its ingénues. |