Irish edit

Etymology edit

From Old Irish éifechtach (effective, efficacious, efficient; weighty, important). By surface analysis, éifeacht (force, significance; efficacy, effect; value, importance; sense, substance; achievement, success) +‎ -ach.

Adjective edit

éifeachtach (genitive singular masculine éifeachtaigh, genitive singular feminine éifeachtaí, plural éifeachtacha, comparative éifeachtaí)

  1. forceful, significant; efficacious, effective; important
  2. great, powerful; highly capable

Declension edit

Derived terms edit

Mutation edit

Irish mutation
Radical Eclipsis with h-prothesis with t-prothesis
éifeachtach n-éifeachtach héifeachtach not applicable
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.

References edit