The story
- Proto-Indo-European*wekʷ-
- Proto-Indo-European*wokʷ-
- Latinvocō
- Latinvocātiōnem
- Old Frenchvocation
- Middle Englishvocacioun
- Englishvocation
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishvocational
- English todayvocationally
From vocational + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.