(literary) for a husband and wife to live together for a lifetime until old age; often used in the idiom [[白头偕老|白頭偕老|bai2 tou2 xie2 lao3]]

to live to a ripe old age in marital bliss; used as a traditional blessing at weddings to wish a couple a long and happy life together until their hair turns white

to be in the company of; to go along with; together with

(literary) in the company of each other; together; to accompany one another

(literary) to go, walk, or travel together with someone

To live together as a couple until old age; used as a standard greeting to congratulate a newly married couple.

surname; George Leslie Mackay (1844-1901), Canadian Presbyterian missionary to Taiwan