The remaining time was only a few minutes.
His fortune was merely a trifling amount.
This bridge was completed in a mere three days.
His income amounts to no more than a few tens of thousands of yen.
僅か is the everyday word for 'only a small amount', both as an adverb and na-adjective, while 僅々 is a rarer, more literary variant with the same root kanji.
Kanji form using 僅; rare and literary. The repetition mark 々 is used.
Kana spelling; more common in modern writing due to the rarity of the kanji.
Alternate kanji form without the repetition mark; also rare.
Reduplication of 僅 (きん, 'only, a little'), which is a kanji used in literary Chinese. The exact historical derivation is uncertain, but the form is used in classical Japanese and modern literary writing.