quicken

1 ENTRIES FOUND:
quicken /ˈkwɪkən/ verb
quickens; quickened; quickening
quicken
/ˈkwɪkən/
verb
quickens; quickened; quickening
Britannica Dictionary definition of QUICKEN
1 
a  [+ object] : to make (something) faster
b  [no object] : to become faster
2 
formal + literary
a  [+ object] : to make (something, such as a feeling) stronger or more active
b  [no object] : to become stronger or more active