Many English words at one time had meanings that were quite different from their current ones. Match each of the semantic changes in Column X to an example given in Column Y and select the appropriate sequence.
Note: The older meanings of the words of Column Y are provided in the corresponding row in Column Z.
\begin{tabular}{|c|c|c|}
\hline
Column X & Column Y & Column Z
\hline
P. narrowing & i. silly & 'happy, prosperous'
Q. broadening & ii. pretty & 'tricky, sly, cunning'
R. amelioration & iii. bead & 'prayer'
S. pejoration & iv. aunt & 'father's sister'
\hline
\end{tabular}