Triads are recorded in early Irish manuscripts such as the Yellow Book of Lecan, the Book of Uí Maine and the Book of Ballymote - translated by Prof. Kuno Meyer

Ireland
Joined March 2020
The three households of Ireland - the household of Tara, the household of Cashel, the household of Crúachan.
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I am taking a break for a couple of weeks and I will be back then. Táim ag tóg sos ar feadh cúpla seactain agus beidh mé ar ais ansin. :-)
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Three preparations of a bad man's house - strife before you, complaining to you, his hound taking hold of you. Image - Desmond Kinney Mosaic
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Three things whereby the devil shows himself in man - by his face, by his gait, by his speech. commons.wikimedia.org/wiki/F…
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Three rejoicings that are worse than sorrow - the joy of a man who has defrauded another, the joy of a man who has perjured himself, the joy of a man who has committed parricide. commons.wikimedia.org/wiki/F…
Three rejoicings followed by sorrow - a wooer’s, a thief’s, a tale-bearer’s. commons.wikimedia.org/wiki/F…
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The three worst welcomes - a handicraft in the same house with the inmates, scalding water upon the feet, salt food without a drink. commons.wikimedia.org/wiki/F…
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The Triads of Ireland - Trecheng Breth Féne retweeted
46 Céin·mair ’na luing indḟota oca·mbíat a lennata oc imram ard allata íar n-ingnais a mennata. “Blessed in his long-prowed boat he who has with him his sweethearts, rowing proud and glorious after losing his homely place.” /3
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Three keys that unlock thoughts - drunkenness, trustfulness, love. commons.wikimedia.org/wiki/F…
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Three free ones that make slaves of themselves - a lord who sells his land, a queen who goes to a boor, a poet’s son who abandons his father's craft. commons.wikimedia.org/wiki/F…
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Three things that are worst for a chief - sloth, treachery, evil counsel.
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Three wonders concerning the Táin Bó Cuailnge - that the cuilmen came to Ireland in its stead, the dead relating it to the living, viz. Fergus mac Róig reciting it to Ninníne the poet in the time of Cormac mac Fáeláin, one year's protection to him to whom it is recited.
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Three that are most difficult to talk to - a king about his booty, a viking in his hauberk, a boor who is under patronage. commons.wikimedia.org/wiki/F…
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The three households of Ireland - the household of Tara, the household of Cashel, the household of Crúachan. (Image - Queen Medb - JC Leyendecker)
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Three fewnesses that are better than plenty - a fewness of fine words, a fewness of cows in grass, a fewness of friends around ale.
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The Triads of Ireland - Trecheng Breth Féne retweeted
45 Trúag in turus do·breth form-sa, a rí rúine! Ach! Ní ‘ma·ndechad fudéine do chath Chúile! “A pity, the journey that has been imposed on me, oh king of the mystery! Ah! Had I myself never gone to the battle of Cúl Dreimne!” /3
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Three hands that are best in the world - the hand of a good carpenter, the hand of a skilled woman, the hand of a good smith.
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Three oaths that do not require fulfillment - the oath of a woman in birth pangs, the oath of a dead man, the oath of a landless man.
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Three hateful things in speech - stiffness, obscurity, a bad delivery. commons.wikimedia.org/wiki/F…
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