What is the meaning of Trá?

beach, strand, (sandy) seashore

(beach at) low water

foreshore

verbal noun of tráigh

ebb

subsidence, decline

then, indeed; however

then, indeed; however

Alternative form of treá (spear)

now, therefore, then

Apocopic form of traz; used preceding the pronouns lo, la, los or las

to gild (cover with a thin layer of gold)

Source: wiktionary.org