New Living Translation
because they assumed he was among the other travelers. But when he didn’t show up that evening, they started looking for him among their relatives and friends.

American Standard Version
but supposing him to be in the company, they went a day's journey; and they sought for him among their kinsfolk and acquaintance:

Berean Study Bible
Assuming He was in their company, they traveled on for a day before they began to look for Him among their relatives and friends.

Douay-Rheims Bible
And thinking that he was in the company, they came a day's journey, and sought him among their kinsfolks and acquaintance.

English Revised Version
but supposing him to be in the company, they went a day's journey; and they sought for him among their kinsfolk and acquaintance:

King James Bible
But they, supposing him to have been in the company, went a day's journey; and they sought him among their kinsfolk and acquaintance.

World English Bible
but supposing him to be in the company, they went a day's journey, and they looked for him among their relatives and acquaintances.

Young's Literal Translation
and, having supposed him to be in the company, they went a day's journey, and were seeking him among the kindred and among the acquaintances,

Luke 2:44 Additional Translations ...