G2620–κατακαυχάομαι–katakauchaomai

Boast not against the branches. But if thou boast, thou bearest not the root, but the root thee.

κατακαυχῶ katakauchō “do boast”κατακαυχᾶσαι, katakauchasai “you boast against [them],”

For he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment.

κατακαυχᾶται katakauchatai “it triumphs over”

But if ye have bitter envying and strife in your hearts, glory not, and lie not against the truth.

κατακαυχᾶσθε katakauchasthe “do boast [of it]”