fulsome

Origin:

Middle English (in the sense 'abundant'): from full¹ + -some¹

Although the earliest use of fulsome (first recorded in the 13th century) was ‘generous or abundant’, this meaning is now regarded by some people as wrong. The correct meaning today is held to be ‘excessively complimentary or flattering’. However, the word is still often used in its original sense of ‘abundant’, especially in sentences such as she was fulsome in her praise for the people who organized it, and this use can give rise to ambiguity: for one speaker, fulsome praise may be a genuine compliment, whereas for others it will be interpreted as an insult.