Etymology

tactically

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Today it means: in a tactical manner; in a manner calculated to achieve some end. Full definition →

Proto-Germanic *līką ← Proto-Indo-European *leyg- ← English tactical
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The story

  1. Proto-Indo-European*teh₂g-
  2. Proto-Hellenic*tat͏̌t͏̌ō
  3. Ancient Greekτάσσω (tássō)
  4. Ancient Greekτακτικός (taktikós)
  5. New Latintactica
  6. Englishtactic
  7. Proto-Indo-European*h₂el-
  8. Proto-Indo-European*h₂élisder.?
  9. Englishtactical
  10. Proto-Indo-European*leyg-
  11. Proto-Germanic*līką
  12. English todaytactically

From tactical + -ly.

Etymology from Wiktionary, CC BY-SA 4.0.