Causative verbs: having something done

-tat/-tet added to a verb turns 'do X' into 'have X done' or 'make someone do X': csinál ('do') → csináltat ('have done'), vág ('cut') → vágat ('have cut'). The person doing the actual work, if named, takes -val/-vel: Fodrásszal vágattam le a hajam ('I had my hair cut by a hairdresser').

Stems ending in certain consonants double them before the suffix: épít ('build') → építtet — a small spelling detail, not a different rule.