Gertru

Gertru is a short form or variant of the Germanic name Gertrude. The name Gertrude is derived from the Old High German elements 'ger' meaning 'spear' and 'trud' meaning 'strength'. It was a popular name in medieval Europe, particularly among royalty and nobility, due to its strong and virtuous connotations. The name has seen various spellings and diminutives across different languages and regions over centuries.

While Gertrude has a long and well-documented history, 'Gertru' specifically appears to be a less common, possibly regional or diminutive form. It retains the core meaning and Germanic roots of its longer counterpart, but its independent usage is rarer. It might have emerged as a pet form or a simplified version in certain dialects or families.