sämtlich, etlich, and jeglich

The three determiners above are generally used in more formal contexts. They come before a noun, and their endings change according to gender, case, and number, just like adjectives.

The determiner sämtlich is quite straightforward and is generally translated as "all," "all of them," or "all available." Here, you can see it used with plural nouns, which requires the addition of an -e, and one masculine singular noun, which requires -er. 

Er schöpft sämtliche Transportmöglichkeiten aus.

He exhausts all transportation options.

Caption 32, Wilde Schweiz: Sommer - Part 4

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Aber als es im Palast erschien, zog es sämtliche Blicke auf sich.

But when she appeared in the palace, she caught everyone's attention.

Caption 1, Märchenstunde: Das Aschenputtel

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Auch Fouls und sämtlicher Körperkontakt sind beim Ultimate nicht erlaubt.

Also fouls and all physical contact are not permitted in Ultimate [Frisbee].

Caption 14, Frisbee Karlsruher: Weihnachtsturnier

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The determiner jeglich means "any," "of any kind," or "every."  The -e ending is required for the two feminine nouns here:

Doch jegliche mangelnde Körpergröße macht der Buckelwal durch seine Wendigkeit und Lebhaftigkeit wieder wett.

But the humpback whale makes up for any lack of size with its agility and liveliness.

Captions 16-17, Evolution: Meeresbewohner

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Die Tanks sind allerdings schwer zu reinigen, sodass sie für jegliche Art von Bakterien eine pure Freude sind.

However, the tanks are difficult to clean, making them a pure joy for any kind of bacteria.

Captions 8-9, Galileo: Die fünf spannendsten Geheimnisse rund ums Fliegen

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Finally, etlich means "a number of," "several," or "quite a few." Again, we see an -e added for the plural nouns in the examples. 

Nach so schönen Bildern, ähm, hab' ich jetzt auch mal ein paar Profis gefunden, die schon etliche Male gesprungen sind.

After such beautiful images, er, I have now found a few professionals who have already jumped quite a few times.

Captions 19-20, Abenteuer und Sport: Fallschirmspringen

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In Deutschland leben etwa achttausend Halsbandsittiche, dazu kommen noch etliche Alexandersittiche.

About eight thousand Ring-necked Parakeets live in Germany, in addition, a number of Alexandrine Parakeets.

Captions 4-5, Freilebende Papageien Überwintern in Wiesbaden

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Further Learning
Try to create your own sentences with these determiners, or look for additional examples on Yabla German.