Edward William Lane, An Arabic-English Lexicon, ت

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1 تَاسَ أسا أسي تأس تاس , [aor. يَتِيسُ,] He (a kid) became a تَيْس. (M, TA.) ― -b2- [Also, app., (tropical:) He became like a hegoat in stupidity: for what immediately follows appears to be the fem. of the imp. of this verb.] ↓ تِيسِى is a word used in declaring a thing to be vain, and false: (M, K:) or it is an execration; [for لُعْبَةٌ, an evident mistake, which I find in copies of the K, and in the TA, I read لَعْنَةٌ;] and a reproach: (K:) the vulgar say تِيزِى, changing the س into ز. (TA.) One says to a she-hyena, تِيسِى جَعَارِ, (A, * K,) meaning (tropical:) Be thou like the he-goat (تَيْس) in stupidity, O she-hyena: and these words are a proverb applied to a stupid man. (A, TA.) The same words were directed, by Aboo-Eiyoob, as is related in a trad., to be said to a غُول, (M, TA,) as though one said to her, Thou liest, or hast lied, O girl. (TA,) And one says to a man, تِيسِى, and اِحْمَقِى, [as though he were a she-hyena, or a woman,] when he speaks foolishly, or stupidly, or says what is not like anything. (AZ, TA.)