digit-, digiti-

(Latin: finger, toe; from Greek daktylos)

digitus medius, digitus tertius
The middle finger (or the long finger) is the third digit of the human hand and usually the longest finger, located between the index finger and the ring finger.
digitus minimus (s) (noun), digitus minimi (pl)
The little finger, also commonly referred to as the "pinky" or "digitus quintus", is usually the smallest finger of the human hand, opposite the thumb, next to the "ring finger".

The digitus minimus is also called the "fifth finger", or the "fourth finger" colloquially [not counting the thumb as a "finger"].

digitus postminimus
Any manifestation of a small supernumerary digit on the medial side of a fifth digit on a hand or foot.

It may resemble a normal digit or consist of only a fleshy tab.

digitus quartus
The fourth digit of the foot.
digitus secundus
The second digit, or toe, of the foot.
digitus tertius
The third digit, or toe, of the foot.
Having an odd number of fingers or toes, either one, three, or five, as in the horse, tapir, rhinoceros, etc.
1. To communicate ideas with the fingers; to show or compute by the fingers.
2. To point out with the finger; to indicate.
1. The act of pointing out as with the finger; an indication.
2. Computing or conversing by the fingers.
3. Interlocking of the fingers of two hands; hence, the mode of junction of muscle and tendon.
1. To interlock, as the fingers of two hands that are joined; to be interwoven; to commingle.
2. To interweave.
interdigital (adjective) (not comparable)
Regarding something located or occurring between the fingers or toes: Dr. Lawson looked at the tissues between Tom's toes and told him that he had an interdigital fungus infection which could be treated and cured easily.
Foot web; literally, between the digits; especially, as seen with penguins, ducks, geese, etc.
1. To become interlocked like the fingers of folded hands.
2. An interlocking of parts by fingerlike processes.
malinterdigitation (s) noun), malinterdigitations (pl)
A dental condition in which the upper and lower teeth are not properly lined up when biting or chewing: The orthodontist fitted Judy with a brace to help her overcome the malinterdigitation or misalignment of her teeth.
Possessing many digits or many fingers.

Cross references directly, or indirectly, involving the "toes" and "fingers": dactylo-; hallu-; phalang-.