PLUMMET
Meaning of PLUMMET in English
n.
Function: intransitive verb
Date: 1937
1 : to fall perpendicularly <birds plummet ed down>
2 : to drop sharply and abruptly <prices plummet ed >
Merriam Webster Collegiate English Dictionary.
Merriam Webster - Энциклопедический словарь английского языка.
2012