老爺 is read as ろうや (rouya) and means old man.
ろうや
rouya
ろうじゃく
young and old
ろうじん
old person
ろうご
old age
ろうか
ageing
しにせ
long-established shop
おいる
to age
ろうじゅう
member of shogun's council of elders
ろうじゃくだんじょ
men and women of all ages
ろうし
Laozi
ろうば
old woman
ろうじんほーむ
retirement home
ろうねん