Does "train up" this verb exist in grammar?

[kachibi]

Some dictionaries are strict (e.g. Merriam Webster, Longman, Cambridge, etc.) and some are loose (Yahoo!, thefreedictionary, etc.). Indeed, it is safer to stick to strict and more authoritative dictionaries. And I really cannot find "train up" in the former. So I would like to know whether "train up" is grammatically correct? Or we should simply use "train"?

[Raymott]

Some dictionaries are strict (e.g. Merriam Webster, Longman, Cambridge, etc.) and some are loose (Yahoo!, thefreedictionary, etc.). Indeed, it is safer to stick to strict and more authoritative dictionaries. And I really cannot find "train up" in the former. So I would like to know whether "train up" is grammatically correct? Or we should simply use "train"?

I would not use "train up". But there are many strange new verbs in Business English. I'd suggest you learn such phrases so you know their meanings, and use conventional phrases unless you're in an environment where such verbs are used.

[kachibi]

thanks a lot.

[SoothingDave]

Train up a child in the way he should go: and when he is old, he will not depart from it. - Proverbs 22:6

This is from the King James Bible. I would simply say "train" nowadays.

[emsr2d2]

It was used a lot in my previous office job.

He can't do that task. He hasn't been trained up yet.
We're training them up today so tomorrow they'll know what they're doing!

[Tdol]

Maybe it's more common in BrE- it sounds normal enough to me.