1. To change in form or character; alter. 2. To make less extreme, severe, or strong: refused to modify her stand on the issue.3.Grammar To qualify or limit the meaning of. For example, summer modifies day in the phrase a summer day.4.Linguistics To change (a vowel) by umlaut.
INTRANSITIVE VERB:
To be or become modified; change.
ETYMOLOGY:
Middle English modifien, from Old French modifier, from Latin modificre, to measure, limit : modus, measure; see med- in Appendix I + -ficre, -fy.