dhá

Etymology 1
From, from.

Numeral

 * 1) two

Usage notes

 * Used before nouns; is used when free-standing (counting, telling a row of numerals, etc). The following noun is in the singular nominative (or, in the few cases where distinct duals have survived, the dual nominative (e.g. dhá bhróig – "two shoes")) and is almost always lenited; the sole exception is with the third-person possessive determiner, which triggers mutation as if the dhá simply was not there:


 * When used with adjectives, the adjective is always in the nominative plural and is lenited by default:


 * The alternative form dá is used after the definite article (which is always in the singular and is always an, even with feminine nouns in the genitive), aon ("any"), and céad ("first"):


 * When referring to human beings, the personal form is used.

Etymology 2
Lenited form of.