aithne1, f. (gs. ~).1. Acquaintance. ~ a chur, a fháil, ar dhuine, to become acquainted with s.o. ~ a chur ar an saol, ar an ól, to get to know (the ways of) the world, (the effects of) drink. Tá ~ mhaith, na seacht n-~, agam air, I know him well, intimately. Tá an ~ cheart anois agam air, now I really know him (his identity, nature). Tá ~ shúl agam air, I know him to see. Tá ~ chinn aige ar na caoirigh, he knows each individual sheep. Níl ~ ná eolas agam air, I have no acquaintance with him, I know nothing about him. An ~ chontráilte, mistaken identity. Fear (atá) ar m’~, a man I know. Is maith an ~ atá agat, you are quick to recognize people. Tá ~ na tíre aige, (i) he knows everybody in the country, (ii) he is well-known throughout the country. Daoine a chur in ~ dá chéile, to introduce people to each other. Lig sé a ~ chugam, (a fhad)liom, he introduced himself to me. Chuir siad ~ na mbó maol ar a chéile, they quarrelled on first acquaintance. 2. Recognition; act of recognizing. Tá mé ag cailleadh na h~, I am losing my memory for faces. Tá sé ag dul as, ó, ~ (na ndaoine), he is changing beyond recognition. Rud a chur as ~, to disguise sth., to spoil the appearance of sth. Ní raibh ~ súl ná béil air, his features were unrecognizable, he was all bespattered (with mud, etc.). Tá ~ do shúl leat, you have got what you fancied. Níl ~ a bheart aige, he is incapable (on account of drink, etc.). Gan ~ gan urlabhra, comatose; dead. 3. Appearance. Má tá sé saibhir níl a ~ air, if he is rich he doesn’t look it. Tá ~ bisigh air, he shows signs of improvement. Níl ~ air nach leis féin an áit, he looks as if he owned the place. Tá ~ saighdiúirí ag teacht orthu, they are beginning to look like soldiers. Le h~ an lae, at the first sign of dawn.
aithne2, f. (gs. ~, pl. -theanta). Commandment, precept. ~ a chur ar dhuine rud a dhéanamh, to bind, command, s.o. to do sth. Na Deich nA~, the Ten Commandments. Aitheanta Dé agus na hEaglaise, the commandments of God and of the Church. S.a. crann 1(a), nimh 2, úll 3.