WORD ORIGIN PART 1.

ATROPHY:

1590s, From the Greek word atrophia "a wasting away", from a-"not" + trophe "nourishment"

OBSTINATE:

14th Century, From the Latin word obstinatus "stubborn", from ob "by" + stinare "stand"

TREPIDATION:

1600s, from the Latin word trepidationem "alarm, trembling", from trep-"to shake"